This release has several fixes and improvements to both the calendar and the gallery.

Changelog:

 - fixed: Several typos in the new Calendar help documentation.
 - fix: List View now starts at the beginning of the day passed in.
 - Removed some spurious warnings from the calendar.
 - Added ability to edit comments. Entirely changed how comments work in prep
   for turning it into a mixin.
 - fixed: Child assets not indicated by plus sign in uncommited tags
 - Added WebGUI::Asset::File::GalleryFile as a subclass for all files to be 
   used inside the Gallery.
 - Changed WebGUI::Asset::File::Image::Photo to subclass GalleryFile