use our on localizations for yes/no/ok/cancel instead of Android ones
upgrade wizard - auto pick collection.apkg, clearer workflow, screen orientation crash while upgrading fix
ability to cancel upgrade via web - issue 1580.3
upgrade wizard, web upgrade skips corrupt .anki files, aborts early when all are corrupted, improved messages on errors
fix an importer bug with sql cache running out
upgrade wizard - export old collection - issue 1580.6
upgrade wizard - messages and dialogs improvements - issue 1580.7,8,9,10
Merge pull request #35 from iniju/v2.0.1-upgrade-wizard-impr

Improvements to upgrade wizard.