Removed settings/update.py and modified branson.py to reflect updates. No changes required for settings/default.py

Fixed URL sent out in event creation LVAlert to a valid URL, namely the URL of the event file in the web interface.

Added Bayestar MIC robot DN and user. This is a temporary robot for ER5. Should probably be removed when Leo doesn't need it anymore.

Changed performance log to a simple rather than rotating file. The file needs to be cleaned up rather than rotated, or the 3-day lookback property breaks.

Changed admin and admin email to Branson (e.g., myself), so that I can get emails when the live box throws a 500.

Added a log file and view for the ER5 performance metric. The PerformanceMiddleware response handler checks whether the user tried to create an event or annotation, and records the status code of the response. The view 'performance' displays stats for performance over the last three days. NB: This solution is fragile for several different reasons. But the most egregious is that permissions on the log file cause conflicts with django management commands. This will need to be addressed in the future.

Added MPLCONFIGDIR location to django.wsgi. Otherwise, the gstlalcbc_reports page will break. This has something to do with matplotlib.

Added some features to gstlalcbc_report (semi-adaptive mass bins, default query, end_time template filter). Also refactored gstlalcbc_report into reports.py. Some other cleaning up.

Modified translator for CWB events to consume links to the CED and FITS skymap, if available, and write log messages with the links. Resolves Issue #1179.