Merge pull request #94 from noodle/master

(bug) Fix svg rect overlay to fill entire screen.  Closes #87
(refactor) Changes max message length to 20 characters from 10
Merge pull request #95 from bethjohnson/bug/messageSize

(refactor) Changes max message length to 20 characters from 10
(docs) Add documentation to Gulpfile, index.js and app.js. Added docco to package.json
Merge pull request #96 from christophertrev/docs/appGulp
(docs) Refactor and document server.js