First prototype: Fix some bugs in libanki and render the answer in the background for the second column
Make Q&A background render task quit whenever a new task is started,
also remove the question from the answer like in Desktop version
fix bug where progress dialog wasn't shown on second search
use separate layout for card item in browser, and add column headers
Make second column customizable (with limited column choices)
fix the card_item layout for adding saved data from dictionary apps, which was trying to share the layout with browser before
Use spinners for column headings instead of just clickable TextViews
renamed the card_item for adding from dictionary saved data to "add_intent_item" to make it more clear
Merge pull request #239 from timrae/cardBrowserCustomize

Customizable second column for card browser (Issue 1310)