Merge pull request #42 from codep0et/master

Added the git pull command
Sort lib/commands.
Correct note about branch parameter in pull.
Switch to grunt-bump.
Release v0.2.6
allow output to stdout
add stdio option
that's the linty way.
i'll leave it like this.
add info about stdio to readme
Much cleaner organization.
verbose instead of stdio. also task.options()
Merge pull request #47 from tobobo/stdio

Optionally send command output to stdio
Release v0.2.7