Add verify command

Not entirely sure if this works, but it's at least partially working
based on my rough test.
Fix some minor verify nits
Fix verify code; update docs
Fix verify to kick up errors on extra fields
Update copyright; change license

Since steve is going to be a library, it makes no sense to put it under
the GPLv3 license so I'm relicensing it under the BSD license.
Update to work with vidscraper 1.0.1
Fix status command

Handles lack of whiteboard better plus it'll show you the whiteboard
field value for items that aren't done, yet.
Change structure of video_reqs.json

video_reqs is now an ordered list which makes some other things
a lot easier to do. This changes the code that uses it to handle
the new structure.

This also fixes some issues with the verify command and the
"category" field which is a little special.
Add webedit

webedit allows someone to use their web browser to edit the
json files. It takes advantage of the fact that steve knows about
the structure of the json files and therefore can make it easier on
an editor.

Having said that, it's pretty basic. It isn't all-encompassing and
should be considered one of many tools steve provides to build
conference data.
Update commandline docs
Fix minor issues; change version number to 0.1
Fix version back to .dev
Nix slumber for my own REST client api
Fix restapi bugs

* urljoin splits on /, but the results often had empty strings which
  was causing problems. This nixes the empty strings
* RestAPIException didn't originally take kwargs--now it does. That
  makes it easier to pass additional data through the exception on
  what the Response looked like
Add test case for urljoin
Add steve.util.get_all_categories for NDV

* this adds steve.util.get_all_categories
* this adds more restapi docs so it's clearer what the exceptions
  hold
Update push command to use get_all_categories
Update hacking docs regarding tests

We have one test now, so I can take out the bit about testing being
a total lie.
Add .gitignore
Add blank line to LICENSE