Merge tag 'v0.1.0' into develop

start and stop attributes
Merge tag 'v#1' into develop

Fix firefox pb when clicking a date
prepare version 0.2.0
update polymer to 0.5..x
Merge branch 'feature/updatePolymer' into develop
Changelog
change version v0.2.0
Merge branch 'release/0.2.0'