Add version functionality #7
Allow merge from dev without specs

Problem:
We want to merge from dev-specs directly excluding specs history.

Fix:
Make integration branch to ignore specs files and folders.
Add version command for runner #7

Problem:
We want to be able to test custom CRI nanoc commands using specs
and wrap main functionality into BootNanoc module.

Changes:
* Add a submodule dedicated to commands for the CRI custom runners
* List BootNanoc requirements in a single file so that complete module
functionality can be loaded
* Add include directive for nanoc automatic loading during compile
Replace run block with command runner #7

We want wrap our main code functionality into BootNanoc module.

This is accomplished by replacing run blocks with a runner call to
the custom class.
Fix display of version information #7
Conclude merge for #7