add BugSense framework
remove CrashReportSender impl.
remove CrashReportSender impl.
remove CrashReportSender class
update bugsense sdk 3.3.1
update bugsense sdk
Merge branch 'develop' into features/bugsense

Conflicts:
	CashFlow.xcodeproj/project.pbxproj
	Classes/AppDelegate.m
	Frameworks/BugSense-iOS.framework/Headers
	Frameworks/BugSense-iOS.framework/Resources
	Frameworks/BugSense-iOS.framework/Versions/Current
	Libraries/Si-Calendar/Calendar-Info.plist
replace screenshots
remove old files
renamed
update screenshots
refactor: modify ad delegate methods.
admob bug workaround: recreate ad view when ad load error.
refactor, remove _isShowAdSucceeded handling.
refactor
refactor: showAd -> requestShowAd
refactor
misc fix
fix typo
bug fix: set rootViewController for ad view.