Added model level permissions on Guardian.GroupObjectPermissions for members of the executives group. Also restored a modified version of the ModelBackend that *doesn't* do authentication. This is so that the has_perm check on Models can work.

Added changes to ligoauth.middleware.auth to allow user creation in the event that the user is not already found in the database. Applies to shib only.

Added context processor for login URL, added login URL to base template, added embedded discovery service page.

Conflicts:
	gracedb/api.py
	gracedb/views.py
	settings/branson.py

Fixed event creation logic (in API only) for backwards compatibility with old client. The new function fix_old_creation_request will take a request object from the old client (which has analysisType), guess at the pipeline and search, and then insert those into the request object.

Updated RSS feed templates/logic for pipeline instead of analysis type. Still doesn't work. Somehow seems to depend on obsolete sites framework.

Committed changes to avoid new tables using INNODB and old ones using MYISAM. This leads to fk constraint errors.

Fixed userprofile forms to allow blank far threshold. You have to set blank=True,null=True on the model field *and* required=False on the form field.

fixed templates so as not to invoke get_analysisType_display. I'm not sure if other aspects of the templates will still need fixing.

Fixed make_histogram command so that you get one histogram per pipeline, instead of one histogram per analysisType. This will mix HighMass and LowMass events, so we may want to split on search, where search is available. But I don't think it's that criticial since we aren't using these histograms much.

Fixed cli view to return pipeline,search columns instead of analysisType. Nobody should be using this thang though.

'Fixed' feeds in order not to refer to analysisType. Instead of atype, feeds allows you to specify a pipeline. But not a search.

Fixed guided search (EventSearchForm and oldsearch) to use Pipeline and Search instead of analysisType

Changed event view template selector. Also reduced number of event detail sub-templates to 3. The extra ones were not necessary.