Merge pull request #4 from andri-ch/dev

Dev
Merge pull request #5 from andri-ch/dev

Dev
Merge pull request #6 from andri-ch/dev

Change package name from Vimrunner.py to Vimrunner and updated docs acco...
Merge pull request #7 from andri-ch/dev

Dev
setup.py improved short description, Readme.rst: specified only python2.7 compatibility.
added Python3 compatibility; all Vim output is encoded from bytes to unicode using 'utf-8' encoding.
fixed minor typo
Merge branch 'python3' -> tested on Python 3.3