If the app is first open, all responses wil saved in preferenses, and then all wall posts will image from responses.. Added new class "offlineMode"
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/src/main/java/typical_if/android/fragment/FragmentWall.java
	app/src/main/res/layout/image_header.xml
If the app is first open, all responses wil saved in preferenses, and then all wall posts will image from responses.. Added new class "offlineMode"