Add example of file loading.
Merge branch 'master' of github.com:GlimmerLabs/MathOverImages
Add basic parsing for MIST functions.
Fix bug in mist-functions.js.
Update mist-functions.js to use prototypes.
Add some Javascript utils.

* contains(array,val) - is a value in an array
* restore(obj) - restore prototypes in a parsed JSON object
Merge branch 'master' of github.com:GlimmerLabs/MathOverImages