Don't 'su' if passed user is current user
Stripping git on_branch? return value; contains trailing newline

This commit also contains git provider `latest' method formatting changes;
squashed by request.
Merge pull request #109 from mikegerwitz/master

Bug fix: Git provider on_branch? retains trailing newline
Temporary workaround for broken Rubygems on Travis
Add the option to shallow clones with git

The new parameter used to indicate that you want a shallow clone is `:depth`
Merge pull request #114 from freyes/add-git-shallow-clone

Add the option to shallow clones with git
git: actually use the remote parameter

When using the following sample, the provider does not use the value of remote
when cloning a repository:

vcsrepo {'/path/to/repo':
   ensure => 'present',
   provider => 'git',
   remote => 'test',
   source => 'git@somerepo:repo.git',
}

$ git remote
origin

This commit makes sure that the new repository has a remote with the
supplied value.

Closes #MODULES-430
Merge pull request #115 from instruct-br/use_remote_name_when_cloning_a_repo

git: actually use the remote parameter
fix svnlook behavior with plain directories

svnlook expects a sub-directory within a repository called "format"; when using svnlook
within a non-repository directory this causes it to throw an error.  Adding a test for
that directory before executing svnlook.
Merge pull request #117 from jonoterc/fix_svnlook

fix svnlook behavior with plain directories
Merge pull request #105 from mcanevet/no_su

Don't 'su' if passed user is current user