Update neo4j java driver to 1.1.0

Author: FylmTM

gradle.properties

@@ -7,6 +7,6 @@ intellijSdkVersion=2016.3
 versionJunit=4.12
 versionAssertj=3.4.1
 versionMockito=1.10.19
-versionNeo4jJavaBoltDriver=1.0.4
+versionNeo4jJavaBoltDriver=1.1.0
 versionPrefuse=1.0.0
 versionGoogleAnalytics=1.1.2

testing/integration-neo4j/src/test/java/com/neueda/jetbrains/plugin/graphdb/test/integration/neo4j/util/server/Neo4jServerLoader.java

@@ -87,7 +87,7 @@ private synchronized Neo4jServer getNeo4jServer() {
     private static synchronized void cleanupNeo4jKnownHosts(Neo4jServerLoader neo4jServerLoader) {
         File hostsFile = Config.defaultConfig().trustStrategy().certFile();
         try {
-            if (hostsFile.isFile()) {
+            if (hostsFile != null && hostsFile.isFile()) {
                 List<String> lines = FileUtil.loadLines(hostsFile);
                 List<String> updatedLines = lines.stream()
                            .filter((line) -> !line.startsWith(neo4jServerLoader.getBoltHost() + ":" + neo4jServerLoader.getBoltPort()))