Session submission

[pbuyle]

• As an authenticated user, I should be able to submit a session I wish to present at the camp.
• (bonus) As an non-authenticated user, I should be able to register on the site and submit a session I wish to present at the camp as a single process.

[pbuyle]

The following permission have been grated to authenticated user:

• Session: Create new content
• Session: Edit own content
• Session: Delete own content

This should allow authenticated users to manage their session submission.

The Field Permissions module is present and access to the Accepted and Date and Time field is restricted to user with the Administrator role.

Submission guidelines are needed.

[pbuyle]

Two fields have been added

• Presentation language
• Tags (for categorization of the sessions)

Field groups have been added to make the edit form a little bit cleaner.