Refactor search view - Githubissues

This PR:

Makes a clearer distinction between the get/post paths
Makes the data source names independent from their values
Adds javascript to unselect options if someone hits "All" and to unselect "All" if someone selects an option
Updates the nvmrc for cloud.gov
Adds documentation for running a local uaa server for development

Sgtpluck / resource-search