Make sure Darwin uses i386 as the arch
fix rvm user ..., fix #2963
Merge branch 'master' of github.com:wayneeseguin/rvm
Updates the MagLev download URL to gemtalksystems
Merge pull request #2985 from johnnyt/jt-maglev

Fix install of MagLev on Macs, fix #2984
updated patches for current 2.1 head
Merge pull request #2991 from skaes/ruby-2-1-head-patch-update

updated patches for current 2.1 head
Add "float_warnings" patchsets for 1.9.3-p547, 2.0.0-p481 and 2.1.2
Merge pull request #3004 from knugie/master

Add "float_warnings" patchsets for 1.9.3-p547, 2.0.0-p481 and 2.1.2