Facade the tileableCount method onto GalleryOnFocusView
Remove a content view if the attachment failed to load and there are no more tileable attachments
Merge pull request #55 from Livefyre/v2_fixes

Facade the tileableCount method onto GalleryOnFocusView
Revert imageError.hub handler
Manage initial display of content views with tileable attachments
Bump version to 2.0.4
Merge pull request #56 from Livefyre/v2_fixes

V2 fixes
Fix bug with accessing attachmentsView in contentView