Merge pull request #137 from masondesu/eric-fix-branch

Various changes to mobile engineering copy on landing pages and the class page
Merge pull request #138 from masondesu/eric-fix-branch

added twitter tracking code to the tampa landing page
fixed eric's janky tracking code on the tampa landing page
Merge pull request #139 from masondesu/joe

fixed eric's janky tracking code on the tampa landing page
added twitter analytics script to the DC page