bones of GET and index.html - works

Copied relevant bits of do_POST into a do_GET method.
Copied the index.html mostly from an earlier project:
https://github.com/brainwane/missing-from-wikipedia/blob/master/webapp/templates/datainput.html
styling and footer
styling fix
text and link fixes
tag attribute and presentation fixes
col number
Handle POST requests resulting from form submissions.

When Content-Type is application/x-www-form-urlencoded we need to use
urlparse.parse_qs to extract and decode the data.

(In the file-upload case, the POST request body is simply the file
itself, so no special handling is required.)
Merge branch 'master' of github.com:brainwane/secureapi

* 'master' of github.com:brainwane/secureapi:
  updates to comments and README