Card online_runtime_266 - Support for LD_LIBRARY_PATH

* Add support for interactive use of Ruby 1.8/1.9.3
* Add support for virtenv use in Python 2.6/2.7/3.3
support for external cartridge through urls
Adding a cucumber test for oo-accept-systems
Fixing typo
Merge pull request #2286 from abhgupta/abhgupta-dev

Fixing typo
Merge pull request #2285 from jwhonce/wip/cartridge_path

Merged by openshift-bot
Merge pull request #2282 from rajatchopra/url_story

Merged by openshift-bot
Merge pull request #2287 from brenton/oo-accept-systems2

Merged by openshift-bot