Bug 980650 - Contact birthday is always off by 1
Merge pull request #17121 from jmcanterafonseca/fix_bday_date

Bug 980650 - Contact birthday is always off by 1
Revert "Bug 969472 - [B2G][Calendar] Events can still be tapped on and viewed when no calendar accounts are activated"

This reverts commit 0c9fe5806586fe46de83a787ada4fecc893081f0.
Revert "Bug 917537 - Turn back on modify_event_test.js it was disabled because of intermittent failures"

This reverts commit 99479a8c5e487a3c8a5430ac3aab37f0e2d67a20.