First version of Google Maps gadget working (using Google Maps API
directly)
Added actions on the Python side, started to use Gmap3 on top of the
Google Maps api.
Added documentation for add_maps_marker in actions.py.
Merge branch 'feature/chartgadget' into develop
Merge branch 'develop' into feature/gmapsgadget

Conflicts:
	actions.py
	css/dashboard.css
	js/tweetboard.js
	queuefiller.py
Added demo action invocations to queuefiller.py, fixed small bug in handlers.js, updated docs.
Merge branch 'feature/gmapsgadget' into develop
First version of a tweetlist gadget. Works but is ugly.
Completed tweetlist gadget implementation.
Merge branch 'feature/tweetlistgadget' into develop
First attempt at creating a wordcloud gadget.
Cherry-picked actions.py and tests from features/rengine branch.
Fixed bug in SseHTTPServer (wrong error message in case message is not a dict), adapted tweetprocessor and queuefiller to Jan's wrapper class.
Added links to generated docs to index.html.
Merge branch 'develop' into feature/wordcloudgadget
Added wordcloud actions at the Python side, created event handlers on the Javascript side.
Merge branch 'feature/wordcloudgadget' into develop
Transferred SseHTTPServer.py and tweetprocessor.py from SVN.
Merge branch 'develop' into feature/chartgadget