set minSdkVersion to 14
remove gingerbread refs
remove api<11 drawables
remove gingerbread layout
remove references to honeycomb
remove specialized code for pre-ICS Android versions
remove ICS references
code style
merge v14 styles.xml with default styles.xml and delete values-v11/styles.xml
merge v14 reader_styles.xml with default reader_styles.xml
isGteAndroid4 now test if api >= 14 - in case we still need it later
remove references to ICS
remove references to SysUtils.isGteAndroid4()
remove commented code and useless SuppressLint
Merge branch 'develop' into issue/1258-drop-gingerbread-support

Conflicts:
	build.gradle
remove the ptr tip
remove unused mContext
Post list: add refresh button in collapsed action bar
Prepare use a broacasted refresh event
fix #1321