Adding log4j as a test-dependency for all modules.

#### Problem

For all tests there is no logger implementation and hence it is difficult to debug the tests sometimes.

#### Modification

Added a `testCompile` dependency on log4j for all modules and log4j configuration file.

#### Result

No more "no logger found" warning and logs configured.

Author: NiteshKant

build.gradle

@@ -45,6 +45,7 @@ subprojects {
         testCompile 'org.mockito:mockito-core:1.10.19'
         testCompile "org.hamcrest:hamcrest-library:1.3"
         testCompile 'io.reactivex.rxjava2:rxjava:2.0.0-RC5'
+        testCompile 'org.slf4j:slf4j-log4j12:1.7.21'
     }
 
     test {

reactivesocket-client/src/test/resources/log4j.properties

@@ -0,0 +1,33 @@
+#
+# Copyright 2016 Netflix, Inc.
+# <p>
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+#  the License. You may obtain a copy of the License at
+#  <p>
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  <p>
+#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+#  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#  specific language governing permissions and limitations under the License.
+#
+
+
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n

reactivesocket-core/src/test/resources/log4j.properties

@@ -0,0 +1,33 @@
+#
+# Copyright 2016 Netflix, Inc.
+# <p>
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+#  the License. You may obtain a copy of the License at
+#  <p>
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  <p>
+#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+#  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#  specific language governing permissions and limitations under the License.
+#
+
+
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n

reactivesocket-discovery-eureka/src/test/resources/log4j.properties

@@ -0,0 +1,33 @@
+#
+# Copyright 2016 Netflix, Inc.
+# <p>
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+#  the License. You may obtain a copy of the License at
+#  <p>
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  <p>
+#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+#  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#  specific language governing permissions and limitations under the License.
+#
+
+
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n

reactivesocket-examples/src/main/resources/log4j.properties

@@ -17,4 +17,4 @@ log4j.rootLogger=INFO, stdout
 
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
-log4j.appender.stdout.layout.ConversionPattern=%c %d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n

reactivesocket-publishers/src/test/resources/log4j.properties

@@ -0,0 +1,33 @@
+#
+# Copyright 2016 Netflix, Inc.
+# <p>
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+#  the License. You may obtain a copy of the License at
+#  <p>
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  <p>
+#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+#  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#  specific language governing permissions and limitations under the License.
+#
+
+
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n

reactivesocket-transport-aeron/src/test/resources/log4j.properties

@@ -0,0 +1,33 @@
+#
+# Copyright 2016 Netflix, Inc.
+# <p>
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+#  the License. You may obtain a copy of the License at
+#  <p>
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  <p>
+#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+#  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#  specific language governing permissions and limitations under the License.
+#
+
+
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n

reactivesocket-transport-aeron/src/test/resources/simplelogger.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2016 Netflix, Inc.
+# <p>
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+#  the License. You may obtain a copy of the License at
+#  <p>
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  <p>
+#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+#  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#  specific language governing permissions and limitations under the License.
+#
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n

reactivesocket-transport-local/src/test/resources/log4j.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2016 Netflix, Inc.
+# <p>
+#  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+#  the License. You may obtain a copy of the License at
+#  <p>
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  <p>
+#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+#  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#  specific language governing permissions and limitations under the License.
+#
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss,SSS} %5p [%t] (%F:%L) - %m%n