simplesystems puts all previous releases in a different path...

Switching to a sourceforge source URL as simplesystems archives all the previous release versions in a different path.  This allows both "current" and historical releases to use a similar URL.
berkshelf2: manually fix dep issues with gem install
Porting python fix over from opscode-omnibus, otherwise health checks fail when building this on CentOS 6.
See https://github.com/opscode/opscode-omnibus/blob/1.4-stable/config/software/python.rb#L48-L49
Merge pull request #227 from juliandunn/fix-python-dynload-silliness

Porting python fix over from opscode-omnibus
Bump dep-selector-libgecode to 1.0.1
add ohai to chef-dk
use path helpers
don't merge env
define path_key
remove  from bundle install
Merge pull request #230 from opscode/include-ohai

Include ohai
Copy `libffi` libs on entire RHEL platform family

This will ensure libffi builds correctly on RHEL as well as CentOS
builders.
Merge pull request #232 from opscode/schisamo/ffi-linking-fix

Copy `libffi` libs on entire RHEL platform family
changes for ffi-yajl
misc cleanup with helpers
that aix block was horrible

how did that get past code review?
apply some chef-sugar
fix with_default_path -> with_embedded_path
Merge pull request #221 from ghudgens/ghudgens-libpng-unavailable-#10

simplesystems puts all previous releases in a different path...
Merge pull request #233 from opscode/lcg/ffi-yajl-gem

Lcg/ffi yajl gem