add github_url generator for organization
add organization links & snap to grid
remove bullet points from unordered lists
add twitter to organizations
show twitter url for organizations where available
add causes, technologies, & links to projects page (& snap to grid)
add staging environment
add staging google analytics code
update organization services path on homepage
Updated the Mission image

Also changed to 12 columns layout. This image has the same name as the
old one, so hopefully there is no issue there. Leaving it so I can see
what happens in this scenario.
Merge branch 'launch_design' of git://github.com/bmartinstudio/codemontage-1 into launch_design
center mission image with consistent side whitespace