added option menu/action bar items to switch deck and time period of statistics, close #3
removed spinnermode (was min API level 11)
fixed encoding in Today statistics WebView, made ProgressBar match_parent and center
Use a set when building the correct string for the type::cloze function.
Also cut out the hint from the correct string.
Merge pull request #438 from trashcutter/stats_add_deck_and_time_action_provider

stats: added option menu/action bar items to switch deck and time period
Merge pull request #440 from ospalh/feature-cloze-fixes

Better type clozes
Disable messing with cliboard when no lookup dictionary selected, and show hint when user long-clicks while dictionary lookup enabled
Merge pull request #436 from timrae/dictionary_lookup

Fix up clipboard
Bump version to 2.3alpha3