Merge pull request #469 from MartijnR/master

tracking code fix (related to changes brought by previous authentication preparedness merge)
turn off https redirect
amended test forms for formatting notes
finetuning of markdown-in-notes
rebuilt
fixes tracking code for subdomains, closes issue #468
remove Code_Igniter system folder
upgraded to Code Igniter 2.1.3, added system as submodule
updating Code Igniter system with fix for bug for unit test in code igniter core
ruthlessly removed unused files
Merge pull request #160 from modilabs/cleanup

Cleanup