Order of response_callback in the docstring
modify p.testing.setUp() to configure the package relative to caller
backport #1325

The copyright symbol causes this error:

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 2559: ordinal not in range(128)

Replaced non-ascii copyright character with HTML equivalent.

Added required notes to changes/contributors file.
Update hooks.rst

'self' param was omitted in the constructor of simple_tween_factory class
Merge pull request #1340 from synthomat/patch-1

Update hooks.rst#registering-tweens