ruby 2.2.0

Closes #35250.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ruby: update 2.2.0 bottle.
ruby-build 20141225

Closes #35251.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
nvm 0.21.0

nvm 0.21.0

Closes #35252.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
postgresql: drop questionable gem installation caveats
hub 1.12.4

Closes #35255.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
requirements: recommend casks where available.

Also, tweak the XQuartz requirement to not show 0.0.0 versions being required.

Closes #35254.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
groovy 2.3.9

Closes #35261.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
groovy 2.4.0-rc-1 (devel)

Closes #35263.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
gibo 1.0.4

Closes #35264.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
carthage 0.5

https://github.com/Carthage/Carthage/releases/tag/0.5

Closes #35262.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
carthage: update 0.5 bottle.