add to changelog.
run tests in verbose mode.
Merge pull request #19 from briancappello/master

remove changed test dir from setup.py
re-enable some tests.
use python2.7 directly (helps the build machine).
switch back to nose tests to work better with TeamCity.
cleanup tools.
Upgrade to cython 0.18.
rename talib.common_c to talib.common.
adding a test for MOM.
export the abstract functions more dynamically.
generate: adding back const since cython 0.18 supports it.
update version to 0.4.3.
update readme a bit.
some cleanup of abstract interface.
change version to 0.4.4-git.
fix typo.
fix an example in README