Allow parts of node.travis_build_environment to be overridden
Specify dependent cookbooks for rvm cookbook
add missing metadata.rb files
add support for a global github token for composer
make sure the .composer dir is created
change config => composer
Merge pull request #192 from travis-ci/jk_composer_with_github_token

add support for a global github token for composer
add a recipe for installing firefox from binary
Use 'ark' LWRP to install firefox binary tarball

Note: I manually removed 'useless' and 'noisy' files from ark-0.1.0.tgz
(e.g. .gitignore or test artifacts strangely stored in `files`
subdirectories).
Firefox tarball: Install required apt dependencies
Cosmetic: Apply 'tarball' naming convention

Similarly to other tarball cookbooks like clang, gradle, kestrel and neo4j-server
Merge pull request #193 from travis-ci/jk_firefox_from_binary

add a recipe for installing firefox from binary
Firefox tarball: fix an attribute and clean up
update the go versions and the aliasssssss
Merge branch 'master' of https://github.com/travis-ci/travis-cookbooks
Configure xvfb with 1024x768x24 screen

Fix #190 [ci skip]
Add perl-5.8
Merge pull request #178 from miyagawa/perl-5.8

Perl 5.8 image
Leiningen 2.2
merge merge merging all the things, thanks @drnic

Merge branch 'metadata' of git://github.com/drnic/travis-cookbooks into drnic-metadata

Conflicts:
	ci_environment/golang/metadata.rb
	ci_environment/libgdbm/metadata.rb
	ci_environment/libncurses/metadata.rb
	ci_environment/libreadline/metadata.rb
	ci_environment/libssl/metadata.rb
	ci_environment/libxml/metadata.rb
	ci_environment/libyaml/metadata.rb
	ci_environment/networking_basic/metadata.rb
	ci_environment/openssh/metadata.rb
	ci_environment/sysctl/metadata.rb
	ci_environment/travis_build_environment/metadata.rb
	ci_environment/unarchivers/metadata.rb