2. Move the list of songs to its own file.

This will allow it to be initalized once and at a large scope (currently
the whole window).  This also allows easier access to the list of songs.
2. Add method for mapping song arrays -> song names
2. Add song selection page

Displays a list of songs that link to the page with the appropriate song
id as a query parameter
2. Add link to song selection
2. Remove song selection from `ideas.yoho`.
Merge pull request #3 from cman131/2-song-selection

2. Song Selection