Added JSON response for a specific visualization page, to allow API callers to grab info on a specific viz. This existed for the list of all vises but not for a specific one
Merge branch 'master' of https://github.com/isenseDev/rSENSE
-Added hide animation for datasets.
-Hid the now unessisary toolbox from project#show
Made some graphics more consistent (iSENSE logo and green plus)
Made data-set buttons match the style of the site better
Merge pull request #323 from nickavv/master

Graphics Update
Merge branch 'master' of github.com:isenseDev/rSENSE into mm199
-Added library for using url helpers anywhere.
-Moved gravatar into a library.
-Added a to_hash method for all models for facilitating consistant json representation.
-Refactored the users page a bit (broken off contributions to another action).
-Random little bugfixes.
-Added forgotten library.
-Fixed user index page with new json format.
-Fixed up some gravatar issues.