added -y option to skip prompt in release

[Hypercubed]

Added -y prompt tio release cli options
Added option to skip prompts in release command
Added example to readme
Fixes [#1]

[heff]

Got a double "version" here

[heff]

One small fix. And not sure why node 0.8 is failing in Travis but I feel like we don't care about 0.8 anymore?

Otherwise lgtm!

[heff]

@Hypercubed added you as a collaborator, so you have push access and can accept PRs, but still make any non-doc changes through a PR that gets reviewed by one other person (a la this governance model)

[Hypercubed]

Fixed, and added a note about the required npm version.

Thanks for adding me as a collaborator. I like what you have done here, it fits well with how I use https://github.com/Hypercubed/todo-md (old code, could use a rewrite).

[Hypercubed]

The travis-ci test are failing at npm update -g npm in the node 0.8 env. It has something to do with incompatibility with npm v3. We can either fix the npm version (see https://github.com/Hypercubed/chg/blob/fix/travis/.travis.yml#L2) or remove node 0.8.

[heff]

Nice, todo-md looks handy. I removed 0.8 and the before_install, so it should be ok now after a merge. Gonna go ahead and pull this in.