deal with regex sets as combinable sets of numeric ranges

moved the range module to a npm

travis bump (and version bump)

travis bump

travis bump

evenly distribute into set; allow custom rng

with feedback from @fent

bump version

umm, yeah, no idea why that was there...
return empty string for impossible sets, use === instead of ==, remove line about slowness from readme

make randSelect usable for discontinouous ranges

dealt with jshint stuff
squished

remove reference to 'negate' param
Merge branch 'rangey.expansion' of https://github.com/dtudury/randexp.js into rangey.expansion

Conflicts:
	package.json
ideas for customization