Merge pull request #15 from nagey/master

Fixed several issues with the nginx deps on mac (at least)
Uncache the remote host & path each time 'pushed.push' is invoked, so multiple separate pushes can be done at once.
Remove #append_to_file calls in http basic deps.
Fix vhost_type reference in vhost.conf.erb after a815383.
Update LaunchBar.app to v5.4.1.
Update ree.src -> ree to use Resource.get instead of the old #process_source.
Consistent param names in 'app user setup'.
Add BSD support to 'set.locale'.
Update 1.9.3 rubies to p374.
Comment & whitespace.
Update 2.0.0.rbenv to preview2.
Build rbenv rubies with some optimisations.
Build ruby.src in parallel.
Add a parameterised 'ruby' dep, to build any :version-:patchlevel to a :prefix.
A comment about a potential better met? test in 'zsh'.
Only pull in headers for 'ruby' deps when building.
Add arch list to 'core software' (no jnettop).
This should all be done via ruby-build.
Update 2.0.0.rbenv to rc2.
Brackets.