Merge pull request #101 from webcompat/dev.webcompat.com

Merge dev.webcompat.com into Master
I am so bad at semicolons.
Let's try this. A little jumpy when closing, but nicer when opening.
Copy changes from @hallvors and @adamopenweb for /about.
Comment out footer negative indent, causing problems.
About style tweaks.
Make textarea a little bit bigger.
Merge branch 'dev.webcompat.com'

* dev.webcompat.com:
  Make textarea a little bit bigger.
Oops. Thanks to IE for pointing out this silly selector bug.
Tell IE to not show scrollbars unless needed.
OK to index now.
Link to /about from homepage copy.
Mailto: href for contact in footer.
Whoops.
Closes #105: don't revalidate if help is already shown.
Validate on input as well as blur.
Don't early return on valid.

(because then you can't go from valid -> invalid, which is
possible if you delete the input)
s/example.com/Site URL/ in textarea default text.
Merge branch 'dev.webcompat.com'

* dev.webcompat.com:
  Make textarea a little bit bigger.
  Add a persistent scroll bar so the page doesn't jump / shift when 'Report bug' is clicked.
I am a SEO wizard.