Increment version to 1.9.1.
Move the requirements.txt file need for tddium testing to tests sub directory.
The inspect.signature() method was only added in Python 3.3. #31
Allow adapter passed to a decorator to be defined by prototype specified as a tuple or a string. #33
Add adapter factory mechanism for deferred generation of adapter function at time of decorator application. #33
Update version number for documentation.
Merge branch 'release/1.10.0'