Rename Carton to Cask
Use Cask in Makefile (functional tests)
Setup tox via run-testable-samples automatically
Fix .travis.yml for Cask
Add "make before-test" and "make print-deps"
Small fix in Makefile
Check Emacs package installation after "make elpa"
Merge branch 'cask'
Run test against Python 3.3
Note that it is tested with Python 3.3 in README
Update epc/__init__.py
Merge branch 'py33'