chore(package): update mocha to version 2.4.2
chore(package): update mocha to version 2.4.2

http://greenkeeper.io/
wmertens/keystone,benkroeger/keystone,xyzteam2016/keystone,dryna/keystone-twoje-urodziny,tony2cssc/keystone,suryagh/keystone,naustudio/keystone,ONode/keystone,matthewstyers/keystone,jstockwin/keystone,danielmahon/keystone,jacargentina/keystone,pswoodworth/keystone,snowkeeper/keystone,everisARQ/keystone,andreufirefly/keystone,xyzteam2016/keystone,frontyard/keystone,danielmahon/keystone,danielmahon/keystone,cermati/keystone,w01fgang/keystone,michaelerobertsjr/keystone,Pop-Code/keystone,trentmillar/keystone,michaelerobertsjr/keystone,alobodig/keystone,benkroeger/keystone,vokal/keystone,Yaska/keystone,nickhsine/keystone,trentmillar/keystone,Yaska/keystone,jacargentina/keystone,creynders/keystone,wmertens/keystone,benkroeger/keystone,naustudio/keystone,rafmsou/keystone,matthieugayon/keystone,concoursbyappointment/keystoneRedux,pr1ntr/keystone,alobodig/keystone,jstockwin/keystone,vokal/keystone,trentmillar/keystone,tony2cssc/keystone,ratecity/keystone,Pop-Code/keystone,brianjd/keystone,matthieugayon/keystone,naustudio/keystone,qwales1/keystone,ratecity/keystone,pr1ntr/keystone,everisARQ/keystone,matthewstyers/keystone,joerter/keystone,suryagh/keystone,brianjd/keystone,ONode/keystone,andrewlinfoot/keystone,dvdcastro/keystone,joerter/keystone,frontyard/keystone,dryna/keystone-twoje-urodziny,sendyhalim/keystone,qwales1/keystone,rafmsou/keystone,andrewlinfoot/keystone,andrewlinfoot/keystone,creynders/keystone,Tangcuyu/keystone,matthewstyers/keystone,concoursbyappointment/keystoneRedux,nickhsine/keystone,snowkeeper/keystone,linhanyang/keystone,webteckie/keystone,pswoodworth/keystone,Tangcuyu/keystone,sendyhalim/keystone,vokal/keystone,dvdcastro/keystone,w01fgang/keystone,webteckie/keystone,andreufirefly/keystone,Adam14Four/keystone,cermati/keystone,frontyard/keystone,Yaska/keystone,Adam14Four/keystone