Comment schedule nav element fixes #8
Copy change About page fixes #6
Header GoGaRuCo logo should link to home page fixes #4
Images on sponsors on sponsor page should link fixes #1
Add volunteer information
Add conditionals to sponsors fix #5

TODO
= still need to add conditional to speakers
   - might have fix for speakers if its needing to avoid a nil
= see if there is not a godo way to dry up all that repetition (helper
method or something)
Sponsors have lighter and darker images
Add style to speaker description links
Merge branch 'rjmcdonald83-ui_changes'