extending README
Improved example in README
Improved example in README some more
Fixed link in README
On second thought, forget the link
Merge pull request #1 from LuminousMonkey/master

Removed hardcoded Trello base URL.
Made the return value of post-card a hash-map with keys rather than strings
Rewrote a large chunk to use OAuth
small change in validation at reccomendation of kibit
Updated README to match last commit
Updated old functions to work with OAuth model and removed old test code
Updated to version 0.2.0-SNAPSHOT
Fixed leftover data causing tests to crash
Added credentials to README
Cleaned up some code

-deleted old authorize-url function
-let the user pass in options when they authorize-client
 like the name and expiration rather than hard coding it.
 If they don't pass any of these in it will use defaults
-optimized trello-get to use get-url
Updated test-suite to reflect the new oauth functions
updated core and tests to use :pre and :post conditions to save a buttload of code.

-instead of attching :errors onto a card now they library will throws an assertion error if the user tries to pass in data that doesn't fit what's required which makes much more sense
Rejigged core.

-Made it 100x more user friendly. Credential generation is now
 done automatically when you use get or post.
-renamed trello-get and trello-post get and post
-get-lists now does the request for the lists rather than just
 returning the url for the request (much cleaner)
TO-DO: update docs
Updated README to reflect last commit
bump to 0.2.1-SNAPSHOT