Merge pull request #58 from protake/master

Make Qt interface play the next episode instead of the current one
Qt: Let engine handle playing the next unwatched episode
Updating AUTHORS
libmal: Raising exception when details weren't retrieved
Handling get_show_details exceptions gracefully
libmal: Throw APIError when there's a problem with search
Handling search exceptions gracefully
libmal: Handling &alpha; entity (#59)
libmal: HTML entities should be Unicode (#59)
Handle start and finish dates internally and auto change them (#38)
Qt: Added automatic date change setting
engine: Handle date change when changing the status instead (#38)
Revert "engine: Handle date change when changing the status instead (#38)"

This reverts commit 004925d7a1e6b686aa5484ba54dac16335dd2734.
Changed episode analyzer to libMal's
Added alternative title to hb processor
Fixed ui breaking when show had no episode count stated
Moved tracker code to new module
Finished moving tracker to separate module
Tracker: Changed init message
libvndb: Now uses proper term based search (#67)