Updated changes
Lots of small fixes and refactoring
added upper case alternative to gitignore. Seems package name can be interpreted as upper case folder
added test suite declaration to setup.py
added support for optional 'about' tag in Record
filled out exception docstrings according to OAI documents
transferred http error changes from https://github.com/ahagenbruch/sickle/commit/2e24e52db8cb041605a5e0de3e9969867012fc08
added travis.yml file
If resumption token is sent, don't send any other parameters
bump version tag