Update library versions

.idea/modules.xml

@@ -2,9 +2,8 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
-
+      <module fileurl="file://$PROJECT_DIR$/IITB-App.iml" filepath="$PROJECT_DIR$/IITB-App.iml" />
       <module fileurl="file://$PROJECT_DIR$/IITBApp.iml" filepath="$PROJECT_DIR$/IITBApp.iml" />
-
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
     </modules>
   </component>

app/build.gradle

@@ -23,8 +23,8 @@ android {
 
 ext {
     supportLibVersion = '26.1.0'
-    playServicesVersion = '11.6.2'
-    butterKnifeVersion = '8.7.0'
+    playServicesVersion = '11.8.0'
+    butterKnifeVersion = '8.8.1'
     appAuthVersion = '0.2.0'
     retrofitVersion = '2.1.0'
     okhttpVersion = '3.4.1'
@@ -43,14 +43,14 @@ dependencies {
     compile "com.android.support:design:${supportLibVersion}"
     compile "com.android.support:support-v4:${supportLibVersion}"
     compile "com.jakewharton:butterknife:${butterKnifeVersion}"
-    compile "com.google.android.gms:play-services-gcm:11.6.2"
+    compile "com.google.android.gms:play-services-gcm:${playServicesVersion}"
+    compile "com.google.android.gms:play-services-maps:${playServicesVersion}"
+    compile "com.google.android.gms:play-services-location:${playServicesVersion}"
     annotationProcessor "com.jakewharton:butterknife-compiler:${butterKnifeVersion}"
     compile "com.squareup.retrofit2:retrofit:${retrofitVersion}"
     compile "com.squareup.retrofit2:converter-gson:${retrofitVersion}"
     compile "com.squareup.okhttp3:okhttp:${okhttpVersion}"
     compile "com.squareup.okhttp3:logging-interceptor:${okhttpVersion}"
     compile "com.squareup.picasso:picasso:${picassoVersion}"
-    compile 'com.google.android.gms:play-services-maps:11.6.2'
-    compile 'com.google.android.gms:play-services-location:11.6.2'
 }
 apply plugin: 'com.google.gms.google-services'