donejs -v should show the version number

[chasenlehara]

To be consistent with other CLIs, please make donejs -v return the current version number.

[justinbmeyer]

I've brought this up a few times, but I think the underlying utility we're using makes it this way. I don't know the particulars. cc @daffl

[cherifGsoul]

It returns the version with -V or --version

[marshallswain]

This is the only tool I use that requires a capital -V. It would be nice to have -v work, too

[chasenlehara]

I filed a bug with commander, the package we use: tj/commander.js#560

[frank-dspeed]

its not a commander bug simply put in an alias