add status "add to queue"
bugfixing
-better performance for batch operations
-support from 7 API
-new thread queue control, delegate status of current operation, connection to already existing operation
fixed background issue
added new method
NPE's fixed
Fixed adapter cast exeception
String formating issue fixed
refactoring and some issues fixed
Merge branch 'dev' of https://github.com/IstiN/android_xcore
refactoring and some issues fixed
Critical database issue fixed
added AssetsDataSource
code style
improve ErrorHandler, add sync execute method
added notify change method
Merge branch 'master' into dev