Add width, height and thumbnails.
Add MeiZi card detail activity.
MeiZiCardAdapter.getItem() returns MeiZiCard.
Open detail activity when a card is clicked.
Make variable name easier to understand.
Don't recreate MainActivity.
Make image loader as local var, reduce references.
Only automatically load cards on first run.
Don't show caption of MeiZiCard in the list.
Merge branch 'feature/display-full-image' into develop