Add documentation for setAllowNewEmailAccounts and teeny cleanup (#551)

Author: SUPERCILEX

app/build.gradle

@@ -43,8 +43,8 @@ dependencies {
     // They are used to make some aspects of the demo app implementation simpler for
     // demonstrative purposes, and you may find them useful in your own apps; YMMV.
     compile 'pub.devrel:easypermissions:0.2.1'
-    compile 'com.jakewharton:butterknife:8.4.0'
-    apt 'com.jakewharton:butterknife-compiler:8.4.0'
+    compile 'com.jakewharton:butterknife:8.5.1'
+    apt 'com.jakewharton:butterknife-compiler:8.5.1'
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5'
     releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5'
     testCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5'

auth/src/main/java/com/firebase/ui/auth/AuthUI.java

@@ -606,13 +606,23 @@ public SignInIntentBuilder setProviders(@NonNull String... providers) {
         /**
          * Enables or disables the use of Smart Lock for Passwords in the sign in flow.
          * <p>
-         * <p>SmartLock is enabled by default
+         * <p>SmartLock is enabled by default.
          */
         public SignInIntentBuilder setIsSmartLockEnabled(boolean enabled) {
             mIsSmartLockEnabled = enabled;
             return this;
         }
 
+        /**
+         * Enables or disables creating new accounts in the email sign in flow.
+         * <p>
+         * <p>Account creation is enabled by default.
+         */
+        public SignInIntentBuilder setAllowNewEmailAccounts(boolean enabled) {
+            mAllowNewEmailAccounts = enabled;
+            return this;
+        }
+
         private boolean isIdpAlreadyConfigured(@NonNull String providerId) {
             for (IdpConfig config : mProviders) {
                 if (config.getProviderId().equals(providerId)) {
@@ -626,7 +636,7 @@ public Intent build() {
             return KickoffActivity.createIntent(mApp.getApplicationContext(), getFlowParams());
         }
 
-        @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+        @VisibleForTesting()
         public FlowParameters getFlowParams() {
             return new FlowParameters(mApp.getName(),
                                       new ArrayList<>(mProviders),
@@ -636,12 +646,5 @@ public FlowParameters getFlowParams() {
                                       mIsSmartLockEnabled,
                                       mAllowNewEmailAccounts);
         }
-
-        public SignInIntentBuilder setAllowNewEmailAccounts(boolean enabled) {
-            mAllowNewEmailAccounts = enabled;
-            return this;
-        }
-
-
     }
 }