Switch to Open Street Maps for IEEE lab's location.

OSM provides a better rendering of the IEEE lab's
location as well as the ability to add our own
markers (the IEEE Collaboration Lab should show up
a little while after this commit hits master).

calpoly/frontend/templates/thelab.html, Switch
iFrame src to Open Street Map render.
Increase width of IEEE map.

calpoly/frontend/templates/thelab.html, set width
to 100% of iframe to take advantage of all that
previously set whitespace.
Merge pull request #318 from CalPolyIEEE/switch-to-osm

Switch to Open Street Maps for IEEE lab's location.