Adds a shorthand to checkout a remote branch with the prefix "others".

Given a remote branch <b> it will execute
git checkout --track -b others/<b> origin/<b>

This is often useful when we want to checkout someone else branch but we want to clearly
distinguish it from the personal branches.
Add more incentive to write a good PR description
Merge pull request #33 from thejspr/encourage-pr-descriptions

Add more incentive to write a good PR description
Bumps version
Small changes to the names
Increased number of allowed arguments
Bugfix
Merge pull request #31 from mottalrd/master

Adds a shorthand to checkout a remote branch with the prefix "others".
Allows git-explore --line line[-line]
Updates gems
Merge pull request #36 from mezis/update-gems

Update gems
Merge pull request #35 from mezis/git-explore-allows-lines

Git explore allow line reference
merge upstream master