Chore view changes

@ryan-roemer 

Fixes #40 Allow user to specify an `img` tag with a custom logo. Run `gulp start` to see an example.
Fixes #39 Hand icon for morale picker hover.
Fixes #38 First response open and ready to fill out when the page loads. On submit the next response opens.
Fixes #37 Darkened the Submit button a bit.

/cc @paulathevalley