TinyMCE for projects

Related to Pivotal Tracker story *Mercury Editor for projects description* https://www.pivotaltracker.com/story/show/64507678.

[TinyMCE editor](http://www.tinymce.com/) for project description in new/edit form, using [tinymce-rails gem](https://github.com/spohlenz/tinymce-rails). My solution for initialization under Turbolinks is probably clumsy - feedback appreciated. It also takes away some of the flexibility of TinyMCE configuration and only allows the default layout specified in config/tinymce.yml.

To see it in action: http://websiteone-nga.herokuapp.com/projects/websiteone/edit.
there no need to attach a function to WebsiteOne object if you are not going to use it in more than one place on the website.
`$(document).one('page:load', function(){});` is enough, because page:load gets fired after :ready.

regarding Turbolinks - I think there are great and not complicated at all, you just need to understand the concept once.  I really do not see the trouble.