Installing pycurl (again) inside the relevant venv

This should make it available to the proper python for indexing.
Added pinned version to match Duke's recent fix
Removing unneeded 'sudo' for pycurl installation
Cleanup and added comments
Simple test for curl, removing extra pip install
1. Repair trivial merge conflict 2. revert rsync to ssh 3. friendly error message when janrain key file not found