Changing map tab to use datamaps library

Signed-off-by: Matt Bernhardt <mjbernha@mit.edu>
Switching UI to use oatest collection, which contains real data from actual logs.

Signed-off-by: Matt Bernhardt <mjbernha@mit.edu>
Merge pull request #7 from matt-bernhardt/master

Changes the Map tab to use datamaps plugin, and starts pulling data from the end of the pipeline (oatest) rather than faked data (oastats)