Upgrade to latest v2.2.0 of retrofit 2.

Author: Sam1301

app/build.gradle

@@ -72,9 +72,9 @@ dependencies {
     compile 'com.android.support:recyclerview-v7:24.1.1'
     compile 'com.google.android.gms:play-services-gcm:8.4.0'
     compile 'com.google.android.gms:play-services-auth:8.4.0'
-    compile 'com.squareup.retrofit2:retrofit:2.1.0'
+    compile 'com.squareup.retrofit2:retrofit:2.2.0'
     compile 'com.squareup.okhttp3:logging-interceptor:3+'
-    compile 'com.squareup.retrofit2:converter-gson:2.1.0'
+    compile 'com.squareup.retrofit2:converter-gson:2.2.0'
     compile 'com.squareup.okhttp3:okhttp:3+'
     compile 'com.j256.ormlite:ormlite-core:5.0'
     compile 'com.j256.ormlite:ormlite-android:5.0'