version update
Merge pull request #45 from kazuH/master

First translation for Japanese
fix: current steps not saved if there was not entry yet
reset db value for current steps on boot
version update
french first try.

"split count" still missing. Currently don't find a nice way to translate it...
Merge pull request #47 from oXidFoX/patch-1

french first try.
changed to Android Studio & gradle
reorganzized files for gradle
refactoring
play services updated
commented lines removed
removed "exclude folder: outputs"
reverted last commit: AS automatically adds that excludeFolder again :(
fix daysForStamina limited to max 15
fixed crash when accessing cursor
disabled proguard for debug builds
switch to another graph library
Database is now a singleton
reformat code