Merge pull request #286 from gLes/master

Updated Hungarian translation
Fix billing lib bug
Fix bugsense error

https://www.bugsense.com/dashboard/project/a2603e16#error/94599766
Delete sbt build files
Reformatting
XOAuth2 token refresh
Beta
Prepare 1.4.8
Updated Russian translation
translation update
Fix spelling error in Swedish translation
Merge pull request #300 from Neiwa/master

Fix of misspelling in Swedish translation
Merge pull request #294 from NeverGone-RU/patch-1

Updated Russian translation
Merge pull request #295 from marcher233/master

Chinese language resources updated
Remove duplicate string
Added basic maven build file
Adding travis
Fix platform
use explicit ids
Debug build problem