#232 #445
- HomeFragment: replaced ListView with GridView 
- HomeFragment: currentInstance now is nulled in onDestroy only if it
equals to destroying fragment such as in some cases it is possible that
2 instance of the fragment will be in memory at the time
- HomeFragment: updated image size calculation in the initImageWorker
method
- res/layout/fragment_home.xml: replaced listview with the gridview
- res/layout/list_item_newest_photos.xml: updated paddings
- res/values/const.xml: added
- res/values-land/const.xml: added
#445
- GoogleLoginFragment, MainActivity,
PhotoDetailsActivity.PhotoDetailsUiFragment, SyncUploadFragment,
UploadActivity.UploadUiFragment: currentInstance now is nulled in
onDestroy only if it equals to destroying fragment such as in some cases
it is possible that 2 instance of the fragment will be in memory at the
time
- PhotoDetailsActivity.PhotoDetailsUiFragment: updated date format in
photo details to be locale specified
- PhotoDetailsActivity.PhotoDetailsUiFragment: replaced
mImageWorker2.loadImage call with the one with less parameters
- CommonUtils: added formatDateTime method