[FEATURE] Support Vagrant 1.6 version command

Vagrant 1.6 introduces a couple new commands, including the `version` command.
The `version` command shows the currently installed version information and
also checks for new updates available.
[FEATURE] Support Vagrant Share

Vagrant 1.5 introduced Vagrant Share to allow remote access to a Vagrant
environment. This adds support for the `share` and `connect` commands.
[FEATURE] Support Vagrant Cloud commands

Vagrant 1.5 added Vagrant Cloud to share boxes. Some boxes
may be protected, the `login` command allows to access those
protected boxes from Vagrant Cloud.
[FEATURE] Support vagrant global-status

Vagrant 1.6 introduced the `global-status` command which allows
to get a quick overview of all active Vagrant environments for the
currently logged in user.
Improve consistency, remove dots at end of command descriptions
Merge pull request #2787 from irnnr/plugin-vagrant

Support new Vagrant commands
Added gak theme
Forced nossh in gpg-agent plug because it is not detecting correctly
gak zsh theme update
added zbell plugin via https://gist.github.com/jpouellet/5278239
fixed conflict
Merge branch 'gak' of github.com:gak/oh-my-zsh into gak