If passed as number mode gets converted to decimal, should be string
Ensure CloudMan and Galaxy packages are only added when building CloudBioLinux AMIs. Thanks to  Venkatesh Duvvuri
Merge pull request #157 from nuada/upstream

If passed as number mode gets converted to decimal, should be string
Move Homebrew installation after loading of brew packages. Enables skipping Homebrew install steps if no packages needed. Fixes #156
Merge remote-tracking branch 'upstream/master'