Update fog-brightbox to v0.3.0
Add reboot (with --hard option) to servers command

This allows using issuing of cleaner reboot (soft OS level) and reset
(hard hypervisor level) commands to restart servers.

   brightbox servers reboot srv-12345
   brightbox servers reboot --hard srv-12345 srv-23456

[Fixes GH-37]
Replace `reboot --hard` with `reset` action

The activity log shows "reset" events so it was confusing have a
different command to trigger them.

This also fixes the missing help description for reboot.
Merge branch 'master' into better_reboots

Conflicts:
	locales/en.yml
Merge pull request #62 from brightbox/better_reboots

Add reboot and reset actions to servers command