Added license
Merge pull request #18 from enb-bem/issue-17

Added license
Support source maps

Source maps are supported for all conactinating techs: enb-client,
enb-client-module, enb-server-include.
Merge pull request #19 from enb-bem/feature/sourcemap

Support source maps for concatenating techs
Updated dependencies
Updated code style
Renamed option `useSourceMap` to `sourcemap`
Updated docs
v0.3.0
wip