Merge pull request #39 from code-dot-org/staging

DTT
Merge pull request #43 from code-dot-org/staging

DTT
Merge pull request #45 from code-dot-org/staging

Deploy to test
Merge branch 'staging' into test
Really revert recent changes to signup form.
Merge branch 'staging' into test
Merge branch 'staging' of https://github.com/code-dot-org/code-dot-org into donor_slider
Slightly more friendly to small screens.