Improved intents support for IITCm

Features:
- IITCm can receive geo: intents
- permalink/portal link opens a dialog to choose between:
  - share (standard Android feature)
  - view map with installed application (using geo: intent)
  - open intel map with browser
  - copy intel map link to clipboard
- map links removed from Android version (integrated into portal link, see above)

Shortly after implementing this, I had another idea:
- remove "copy", since it is available from the share menu
- implement the other three as a tabbed list
This should be quite simple, since these three features all send an intent. So instead of firing the intent and relying on Android to open an intent chooser, we could directly show supported applications as a list. Please comment if I should implement this.

![screenshot_2013-07-21-01-11-20](https://f.cloud.github.com/assets/2741656/830996/67c692ae-f192-11e2-880a-7128d5210dfa.png)