Added Twitter feed reader.

This loads the SpaceAPI directory and then proceeds to download all SpaceAPI information from the individual spaces. Once that is collected, the twitter names for the spaces are taken from the API information.

For each of the spaces on Twitter, a thread is started that periodically loads new tweets for these spaces (and starts with tweets performed in the last 30 minutes).
Cleaned up MediaWiki slurper.

Lightly refactored the MediaWiki collection class to state clearer what it does and how.
Changed credentials setup.

Example file is in the repository now. Users will need to copy this to the 'actual' file which will not be tracked.