Login session functionality and backpress in mainactivity

I have added login session functionality and backpress in mainactivity
Merge remote-tracking branch 'origin/master'

Conflicts:

	TabsWithSwipeGesture/bin/classes/com/SIMBA/Welcome/LoginActivity$LoginTask$1.class

	TabsWithSwipeGesture/bin/classes/info/androidhive/tabsswipe/CreateList.class

	TabsWithSwipeGesture/bin/classes/info/androidhive/tabsswipe/MainActivity$2.class

	TabsWithSwipeGesture/bin/classes/info/androidhive/tabsswipe/MainActivity$3.class
	TabsWithSwipeGesture/bin/classes/info/androidhive/tabsswipe/R$id.class
	TabsWithSwipeGesture/bin/resources.ap_
	TabsWithSwipeGesture/gen/info/androidhive/tabsswipe/R.java
	TabsWithSwipeGesture/src/com/SIMBA/Welcome/LoginActivity.java