Version number in the code comments

[AlexKeySmith]

It would be great to have the version number or commit number in the grunt build.

I'm upgrading my knockout validation but didn't have a note of what I'm upgrading from. I should of noted down what version I was on previously, but it would be handy to have it in the comments.

I also noticed that there hasn't been a tagged release for a while? Is that because the master branch isn't stable at the moment?

Keep up the good work, it's a great library.

[robertdemartinoXX]

Ditto on the version number (and the compliment about the library).

[crissdev]

The version will be added starting with the new version of the library. Related commit 51e9ff1

[AlexKeySmith]

Excellent! Thanks!