add more python version in travis and tox. #73
remove unittest2, since it brokes on py3
Add optional expires_in parameter to BearerToken

The expires_in is still 3600 by default.
only install unittest2 on python 2.6 and 2.7
add coveralls
Add token_expires_in opt to all-in-one endpoints

It still works as it has worked until use the option.
Merge pull request #160 from bpc/configurable_expires_in

Make OAuth2 BearerToken’s expiration time configurable
Add base OAuth2 Client to documentation
Fix formatting in OAuth 2 Client docs
Use HttpLexer
clean whitespace, fix blank lines according to pep8
Merge pull request #163 from lepture/code-style

clean whitespace, fix blank lines according to pep8
Merge pull request #161 from dasevilla/base-client-docs

Document Base OAuth 2 Client
Merge pull request #158 from lepture/travis

add more python version in travis and tox. #73
Add request parameters to error object
Fixed docstrings
coverall only cover the package, not the tests
it should work this way
Add request param on errors raise where request is available
add badge for coveralls, and fix travis badge