Update src/System/Taffybar.hs

Fix dbus import in comments
Merge pull request #25 from qrilka/patch-1

Update src/System/Taffybar.hs
Implemented MPRIS2 widget
Fix some potential crashes in updateSongInfo (MPRIS2)

I was seeing crashes if I started this widget with no song
playing (also when stopping a song).  I removed the irrefutable
pattern matches in updateSongInfo and allowed it to fail gracefully if
the metadata fields were not populated.
Update changelog and bump version number to 0.2.2

Will follow up with a release to hackage soon
Update README to reflect the new MPRIS2 widget
Bugfix: prevent calendar popup from being destoyed.

The window should intercept the delete event and hide itself,
otherwise it's gone forever.
Merge pull request #29 from escherdragon/ready4upstream

Bugfix: prevent calendar popup from being destoyed.
Added missing Haddock comments.
Merge pull request #30 from escherdragon/ready4upstream

Added missing Haddock comments.
Add a missing type signature
Mention ghc 7.6 compat in the changelog
Remove commented-out code
Remove an unused import
Make a local function top-level

It only accessed local state because it was ignoring its parameter.
Add an explicit export list to the FSMonitor module
Fix a shadowed variable warning, add an explicit export list
Fix a 'catch' warning
Silence an unused variable warning in the systray
Fix a shadowed variable warning