upgrade Pillow to 2.3.0

1.7.8 doesn't compile on Ubuntu 14.04
requirements/libs.txt should be requirements.txt

also fixes a markdown formatting problem
Merge pull request #37 from nikolas/readme-fix

Readme fix: requirements/libs.txt should be requirements.txt
Merge branch 'pillow-2.3.0' of https://github.com/thraxil/mediathread

Conflicts:
	requirements.txt
Merge branch 'master' of github.com:ccnmtl/mediathread
add mysql note
upgrade South to 1.0

This will make life easier when we start thinking about Django 1.7
upgrade a few libraries
add make targets for jshint and jscs

they're not integrated into the default target yet, since
they still have a lot of issues, but now you can at least
run 'make jscs' or 'make jshint' and start seeing what
needs to be fixed
Allow COMPRESS_ROOT to be overridden in local_settings.py

When running the selenium tests like this:

    ./manage.py harvest --settings=mediathread.settings_test
    mediathread/main/features

COMPRESS_ROOT needs to be set correctly.
Merge pull request #39 from thraxil/south-1.0

upgrade South to 1.0
Merge pull request #42 from nikolas/selenium-settings-fix

Allow COMPRESS_ROOT to be overridden in local_settings.py
Merge pull request #38 from ccnmtl/mysql-config

add mysql note
Merge branch 'lib-upgrades' of https://github.com/thraxil/mediathread

Conflicts:
	requirements.txt
Merge pull request #41 from thraxil/jshint-jscs

add make targets for jshint and jscs
mediathread.main.tests no longer uses fixtures
sql querries to delete unused groups;
sql querries to delete unused groups
pull one function definition out of a loop
dashboard js all passes jscs