Merge pull request #26 from meghanlarson/master

Clean up and add progress spinner.
Added git hook endpoint that will be called by Github.
Upgrading to Sails 0.10.
Removing prototype code, including client-side Mathjax calls; all math is now rendered on the server.
MMLC-74 Output text description
MMLC-74 Remove coming soon message for alt text
Move yaml stuff inside azure config
Move text description first
Upgrading to Sails 0.10.
Removing prototype code, including client-side Mathjax calls; all math is now rendered on the server.
Changing owner of cloned repo (required by git hook); also removing all sudo's since the script runs as root.
Cleaning up packages - those which need to be called from the command line are installed globally; the rest are included in the dependency list.
Merge from saqib's fork