Commit Retro Watch v1.1

Retro Watch v1.1 includes:

+ Implements basic UI frame & functions
- uses action bar, tab, fragment pager, fragment
- 2 of 3 tabs are available (message list, filters)
- Message list fragment shows messages to be sent to remote
- Filters fragment shows user defined filters that control messages to
be sent
- Settings fragment is working now

+ v1.1 uses background service to handle contents and service
co-operates with ContentManager.
- Service has 4 content type: Notification, Messaging info, Emergency
info, Feed. But Feed is not available now.
- Gathers following contents: Notification, Gmail unread count, SMS
info, Call info, Telephony state info.
- Filter object contains user defined rule to edit/erase contents. All
filters are stored in SQLite DB. Refer to ContentManager and DBHelper
class.

+ Inter-operability test is not done because arduino device is not ready
yet.