fixed typo with contrib doc

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>
Merge pull request #19 from ehazlett/contrib-typo

typo fix in contrib doc
Add script to validate gofmt

Signed-off-by: Ben Firshman <ben@firshman.co.uk>
Merge pull request #31 from bfirsh/add-script-to-validate-gofmtwq

Add script to validate gofmt
Fix command name in help text

Signed-off-by: Ben Firshman <ben@firshman.co.uk>
Merge pull request #32 from bfirsh/fix-command-name-in-help-text

Fix command name in help text
bails out of virtualbox driver quickly if it doesn't exist.

Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>
bails out of virtualbox driver if VBoxManage doesn't exist

Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>
little typo in the usage strings

Signed-off-by: Damien DUPORTAL <damien.duportal@gmail.com>
Merge pull request #39 from dduportal/usage-typo

Quick PR : little typo in the usage
Merge pull request #40 from sthulb/vbox-driver-quick-failure

VirtualBox bailout
Merge remote-tracking branch 'docker/master'