Fixed com.firebaseui package and version number

Author: puf

README.md

@@ -26,7 +26,7 @@ You can also add the library dependency directly to your app's gradle.build file
 
 ```
 dependencies {
-    compile 'com.firebaseui:firebase-ui:0.2.2'
+    compile 'com.firebaseui:firebase-ui:0.3.0'
 }
 ```
 
@@ -471,7 +471,7 @@ We are still working on deploying FirebaseUI to Maven Central. In the meantime,
 latest release from the Releases tab on the Github repo and install it into your local Maven repository
 with:
 
-    mvn install:install-file -Dfile=/path/to/library-debug.aar -DgroupId=com.firebase -DartifactId=firebase-ui -Dversion=0.1.0 -Dpackaging=aar
+    mvn install:install-file -Dfile=/path/to/library-debug.aar -DgroupId=com.firebaseui -DartifactId=firebase-ui -Dversion=0.1.0 -Dpackaging=aar
 
 ###  Deployment
 To get the build server ready to build FirebaseUI-Android