Added ALERT_XMPP_SERVER settings so we can easily keep test instances sending to jabber instead of lvalert.

Added spin paramters to SingleInspiral object and spin1z and spin2z to the coinc inspiral event display.

and was originally motivated by problems with the presentation of the EMBB.
At a basic level, the page obtains information about the Event log messages
and EMBB logs via AJAX calls to the server. This information is fed into
dgrid tables. Extensive use is made of the 'put-selector' to create DOM
elements. This approach eliminates the need for JavaScript code and django
template loops that build HTML. As not all of the features are correct in
Linux browsers (Konqueror, Iceweasel) more work needs to be done.

Added serialized objects to LVAlert messages. This required to move the serializers themselves from api.py to view_utils.py. Some light refactoring ensued.

Roy and Branson working on the same code at the same time

Changed url for obtaining EEL list to post to skymap viewer. Only one JSON representation of the EEL list is provided by GraceDB, and that is the one in the API.

Changes to allow MBTA events to be submitted via coinc.xml files. Submitting by .gwf files now gives a deprecation warning.

Fixed various problems with reports page that I forgot to update after the Group/Pipeline/Search related changes. Actually, these had not been updated much since ER1, apparently.