Tease apart metadata creation from installation
Pull source_pkg into own function
Clarify download message
Pull download() and add_metadata() out of install_pkg
Update docs
Rename install_pkg to install_pkg
Add remote class & objects for github
Get tests working again
Give resolve_ref more specific name
Use install_remote for install_bitbucket
Update install_git
Add news
Update install_gitorious
Update install_local
Update install_svn
Update install_url
R CMD check fixes