Merge branch 'hotfix/1.18.5' into stable
Merge pull request #1513 from cwgem/ruby-2.0-update

Update ruby-2.0.0 to rc2
1.18.6
Merge pull request #1506 from hokkai7go/193p385

Add ruby-1.9.3-p385
Merge pull request #1513 from cwgem/ruby-2.0-update

Update ruby-2.0.0 to rc2
Merge branch 'hotfix/1.18.6'
add support for new hook model in generated .rvmrc files, fix #1510