separateCSS fix as in RequireCSS #130
report csso error messages
use config.less server and client
fixed potentiel exception
Merge pull request #58 from Rabbit-Inc/master

fixed potential configuration exception
Update README.md
RequireJS update
update lessc 1.7.0
less-builder depends on css/css-builder for file saving logic
less-builder obeys config.less.paths if present, else uses default
Add config.less.browserLoad to opt out of in-browser less parsing and juse use css/css to include a pre-built css file
Dep on require-css
Add support for lesscfg.globalVars and lesscfg.modifyVars
Merge branch 'deponcss'

Conflicts:
	less-builder.js