minor #150 Fix compiler warnings (jpauli)

This PR was merged into the 2.1.x-dev branch.

Discussion
----------

Fix compiler warnings

Commits
-------

c9d5cab Fix compiler warnings
updated CHANGELOG
prepare 2.1.1 release
bumped version to 3.0.0
moved tests under src/
prepare 3.0.0 release
bumped version to 3.0.1-DEV
README.rst : Correct a missing closing parenthesis
minor #152 README.rst : Correct a missing closing parenthesis (andylibrian)

This PR was merged into the 3.0.x-dev branch.

Discussion
----------

README.rst : Correct a missing closing parenthesis

I just noticed that an example on the README was missing a closing parentheses. Thanks.

Commits
-------

c15b3c3 README.rst : Correct a missing closing parenthesis
Fix #154, register() is fluent in C pimple