Check strings file into parent message center branch,fix dependencies.
Check in Italian translation.
Allow messages to contain links.
Merge branch 'message_center_1_0' into dialog_surveys_2

Conflicts:
	apptentive-android-sdk/res/layout/apptentive_about.xml
	apptentive-android-sdk/res/layout/apptentive_message_body_text.xml
	apptentive-android-sdk/src/com/apptentive/android/sdk/AboutModule.java