Catch ActivityNotFoundExceptions

Catch ActivityNotFoundException when attempting to insert or edit a contact.

Bug:12837767
Change-Id: I46688c1f6c59515ff48ddadeaa92e4a74e803eb8
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 0cdeb80..d88d688 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -330,6 +330,11 @@
          was found that could perform the selected action. [CHAR LIMIT=NONE] -->
     <string name="quickcontact_missing_app">No app was found to handle this action.</string>
 
+    <!-- Shown as a toast when the user attempts an action (add contact, edit
+         contact, etc) and no application was found that could perform that
+         action. [CHAR LIMIT=NONE] -->
+    <string name="missing_app">No app was found to handle this action.</string>
+
     <!-- The menu item to share the currently viewed contact [CHAR LIMIT=30] -->
     <string name="menu_share">Share</string>