Merge pull request #91 from BuddyTV/771be06c3ab763c9fd0018c075dcd0510c9c0d6e

Added WithTimeToLive Method on GcmFluentNotification
Fixes #90 - GCM Memory Leak
Merged from redth
Merge branch 'master' of https://github.com/BuddyTV/PushSharp