Spells: bards unable to cancel song casting

[Haynar]

Here are the current things waiting to be patched live:

Haynar - Fixed stacking of Bard MR debuffs. This should allow bard charm to work.
Haynar - Fixed interrupt with spell casting bar for bards (tested with Titanium client).
Haynar - Fixed bard song dropping, right when another song lands.
Haynar - Fixed bard songs dropping early.
Haynar - Fixed bard song fading, right after same song lands.

I twisted 4 songs for 20 minutes, and never had a casting bar drop. I never had a song drop when another lands. I never had one drop, right after landing. And nothing dropped early. I must note, that any bard who regularly twists 4 songs, is nuts.

Haynar