ticket.81364: Fix cancel image request failure caused leak problem
Update build.gradle support v4 version to 20.0.+
Remove unnecessary iml and update support v4 version
Merge branch 'master' of github.com:KKBOX/android_kktoolkit

Conflicts:
	build.gradle
Add customize fullscreen dialog style for KKDialog
Merge pull request #129 from KKBOX/master_jason

Add customize fullscreen dialog style for KKDialog
Merge remote-tracking branch 'origin/master' into master_wendy