Add sermon model
Add sermon scaffold.
Add audio uploader
Admin scoping for sermon uploading
Add audio tag in view, add admin dashboard link
Fixed admin scoping for views and removed Bible Study from main menu.
Fixed migrations.
Sermon index page.

Sermons are available via main menu. Admins can create sermons from /admin and edit and destroy sermons from /admin2. The design is uninspired and very rough on the eyes and edges. Life. Would like link to download sermons though.
Removed scaffold generated tests.
Merge pull request #175 from tmcyf/sermons

[RDY] Sermons