Merge pull request #52 from anton-novikau/master

ListView choice mode support
Fixed issue #53   , also did some refactoring to improve the readability of sticky code.
fixed issue #50
fixed broken setActivate / state_activated on API 11+

- dynamically switch between CheckableWrapperView and WrapperView
- fixed a strange bug I encountered when using this library with EndlessAdapter (cwac-endless)
Merge pull request #55 from hameno/master

fixed broken setActivate / state_activated on API 11+
small formatting change
Merge branch 'master' of github.com:emilsjolander/StickyListHeaders

Conflicts:
	library/src/com/emilsjolander/components/stickylistheaders/StickyListHeadersAdapterWrapper.java
Fixed issue #56 with dividers not showing when specified via xml
fixed so default dividers work again and made list view relayout+redraw when dividers change