fix textDrawable dependency descriptions in build.gradle files

app/build.gradle

@@ -121,7 +121,7 @@ dependencies {
     compile 'com.trello:rxlifecycle-android:1.0'
     compile 'com.trello:rxlifecycle-components:1.0'
 
-    compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
+    compile rootProject.ext.textDrawable
 
     compile 'frankiesardo:icepick:3.2.0'
     provided 'frankiesardo:icepick-processor:3.2.0'

dependencies.gradle

@@ -18,6 +18,7 @@ ext {
   okhttp3 = 'com.squareup.okhttp3:okhttp:3.4.1'
   picasso = 'com.squareup.picasso:picasso:2.5.2'
   picasso2Okhttp3Downloader = 'com.jakewharton.picasso:picasso2-okhttp3-downloader:1.1.0'
+  textDrawable = 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
 
   preDexLibs = !"true".equals(System.getenv("CI"))
 }

rocket-chat-android-widgets/build.gradle

@@ -35,7 +35,7 @@ dependencies {
   compile rootProject.ext.supportAppCompat
   compile rootProject.ext.supportDesign
   compile 'org.nibor.autolink:autolink:0.5.0'
-  compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
+  compile rootProject.ext.textDrawable
   compile rootProject.ext.okhttp3
   compile rootProject.ext.picasso
   compile rootProject.ext.picasso2Okhttp3Downloader