fix mb-orampper url
minimum OS version = iOS 6.1
refactor: move dropbox library
update dropbox 1.3.6 -> 1.3.9
move library: AdMob
AdMob 6.5.1 -> 6.7.0
update ChangeLog
move libraries: ZBarSDK
add BugSense library 3.5.2
Use BugSense
ver 4.1, fix copyright notice
update xib version
update ChangeLog
fix: BugSense api key for lite version.
Merge branch 'develop'