updates lead graf with rim fire becoming 6th largest
Merge branch 'calfire_app'
updates aggregate 2013 numbers as of 8/24
updates lead graf on index.html
updates status of rim fire to fourth largest
updates index page to show rim fire in now third largest wildfire in state history
updates 2013 aggregate fire totals
adds function to fabfile to run twitter management commmand
updates django version in requriements to 1.4.8 per upgrade rec
adjusts model save function to set image url and image credit to none when use case is: image exists, creating URL and credit, but image no longer wanted/needed.