updated the Configuration activity to use view pager instead of tab host. this allows the user to swipe through the Configuration's tabs.
refactoring of the GCS heartbeat logic.
Heartbeat: Inline the thread, and cleaning Javadoc so the code is easier to see.
HeartBeat: Fixing variable name.

A period should be called "perido", and not "freq".
updated the gravity of EditTextPreference elements in the preference screen.
Merge branch 'master' into heartbeatFix

Conflicts:
	DroidPlanner/src/com/droidplanner/activitys/helpers/SuperUI.java
Merge pull request #447 from arthurbenemann/heartbeatFix

Refactoring of the GCS heartbeat logic.
Merge branch 'master' of https://github.com/arthurbenemann/droidplanner into glass
merged with latest from upstream/master, and updated the GCSHeartbeat code.
Merge pull request #445 from ne0fhyk/feature_preferences_screen

Updated the gravity of EditTextPreference elements in the preference screen...
Merge pull request #448 from ne0fhyk/master

Updated the GCSHeartbeat code...
Fixed mission planning crash, change altitude spinner to 200m
Merge pull request #449 from jason4short/master

Fixed mission planning crash, change altitude spinner to 200m
Merge branch 'master' into pager

Conflicts:
	DroidPlanner/src/com/droidplanner/activitys/ConfigurationActivity.java
Merge pull request #450 from arthurbenemann/pager

Added view pager to Configuration activity
updated the Configuration activity to use view pager instead of tab host. this allows the user to swipe
bug fix: markers not showing after screen rotation.
feature update: made the list of markers invisible until the addition of one. made background semi transparent as well.
Editor: Adjust the map padding depending if the mission list is visible or not.
ChangeLog: Adding a tag for version 2.0.0
Editor: Fixing start-up updates on the Editor list padding

Now the padding and visibility of the missionList is correctly updated on every start-up condition.
Small change to the inferface so it can be used by local methods of editorActivity.