Merge pull request #112 from jonschlinkert/master

updated dependencies, some helpers
Merge pull request #113 from jonschlinkert/master

merged in changes from @doowb, rebuild docs and update deps
updating to use helper-lib from other repo and updating engine loader to only call require and let the helper worry about registering the helpers
using helper-lib, which only contains the date helpers right now
Merge remote-tracking branch 'refs/remotes/assemble/master'
helper-lib properly externalized and wired up by @doowb