Clean up freenx scripts to work with both local and remote installations. Fixes #82
Bug fix for is_local yum install.
Flush out yum packages for Galaxy, Galaxy-P, and bio_proteomics.
Reorganize package list for Galaxy to visually align up better with CentOS (move all non-centos available packages to bottom of list. Reogranize bio_proteomics packages to bring more inline with Galaxy-P packages (TODO: still need to work on a way to remove duplication here).