21527 - Release 2.3.2

Update release notes, changelogs and Rakefile
maint: fix failing tests on OS X
21768 - fixup mcollective to use vendorlibdir

Prior to this commit, mcollective didn't use vendorlibdir for more recent
versions of Fedora. This commit updates that, in addition to a more
coherant variable name for it. This also removes ruby(abi) requirement
in favor of just ruby because packaging in F19 no longer provides ruby abi.