Update README.md
Special case for KitKat and higher for image loading
Merge pull request #176 from Catrobat/Issue173_LoadImageKitKat

Special case for KitKat and higher for image loading
Implementation: @dladenhauf [DL]
Acceptance: @galstc05 [SG]
Merge remote-tracking branch 'origin/master' into gsoc_layers_list_of_command_list_w_global_crop_list