[MOSYNC-3273] Added guide for CustomPicker, and made some small improvements to the pages, sorted lists in the index pages, moved doc version string to under the menus, updated title in Screen Transition guide.
Merge remote-tracking branch 'origin/ThreeThree' into ThreeThree
[MOSYNC-3280] Updated Database API example app description and API guide.
[MOSYNC-3280] Updated Database API example app description (panics are not used).
Merge pull request #9 from divineprog/ThreeThree

MOSYNC-3273: Documentation for CustomPicker widget