Update README.md

Version Bump
Merge pull request #52 from matthiasn/patch-1

Update README.md
just some housekeeping
bump readme version
new clojars stuff
Include reset time in rate limit exception

Previously, requests that tripped Twitter's rate limit would not provide
any indication of how long one should wait before repeating the request.
This commit adds a new exception matcher that checks the response header
for the next reset time and includes it in the exception message.

The new message form is as close as possible to the old form to avoid
breaking compatibility with clients:

old: `Twitter responded to request with error 88: Rate limit exceeded`
new: `Twitter responded to request with error 88: Rate limit exceeded.
Next reset at 123456 (UTC epoch seconds)`
Merge pull request #59 from holguinj/rate-limit-msg

Include reset time in rate limit exception
Comment out broken tests

These tests appear to generate spurious failures or else hang indefinitely.
WIP: Messy, but kinda works

Needs to be cleaned up, maybe adjust the map key since :bearer is kinda
dumb. Should probably call it :app_only or something.
WIP: New polymorphic make-oauth-creds

This is exactly what I first tried, so I'm pretty sure it's the right
way to go about things. Next up: tests.
WIP: add make-app-only-test-creds

Prelude to adding tests
WIP: clean up error msg

It will actually throw from the request if something goes wrong in an
obvious way. This should probably check the body output rather than the
status code.
WIP: Add tests for app-only auth
WIP: Add test for header->stringc
WIP: Add new barf testing macro

I h8 that this is a macro.
WIP: url-encode keys

Not actually necessary because they don't even include any forbidden
characters, but it's part of the specc