Added isConnected() and update after app loading

Added isConnected function that checks the connection
availability. Update the data after the app main page
is loaded.
Restructured classes inclusions
Update to Sencha 2.2.0
Bugfixes and Refactoring for speed improvement

Several Bugfixes.
Speed improvements.
WebService - Repeat failed requests.
Polished the code by placing correctly
require, view and module config statements.
Map, Emergency and Transport raw drafts
Added the social channels

- facebook
- linkedin
- twitter
- youtube

In the home view a new button shows a lateral view with a list
of buttons. Every button opens the corrispondent social network
page.