Merge pull request #803 from sarvi/master

Directory restructure and full support for pip install and pip install -e (development mode)
Get all tests to run, atleast the mechanism to run the tests.
Turn them all into console scripts that can be installed and run
from pip install directory. Get pyv8run to be an installed
executable script. Turn scripts/test into pyjstest and run from
installed location as well

Remove the scripts/directory and the scripts there that is not needed
anymore.
Merge remote-tracking branch 'upstream/master'