edx/edx-platform — pull request #38 by yarko (2013-06-02 08:39:52+00:00)
Title: base clean Ubuntu 12.04LTS clean-up changes for install

Note: this includes a couple of lines Xavier has pull-requested also (by necessity);

install-system-req.sh: remove rvm install,
as later removed in create-dev-env;
mv common platform installs so they work for Linux too;

create-dev-env.sh: update default WORKON_HOME
to match virtualenv docs, consistent;
fix Linux case selectors;
fix sourcing of virtualenvwrapper;
fix rvm installation call;