chore(package): update mocha to version 2.3.4
chore(package): update mocha to version 2.3.4

http://greenkeeper.io/
stweil/ol3,stweil/ol3,geekdenz/openlayers,fperucic/ol3,stweil/openlayers,kjelderg/ol3,klokantech/ol3,stweil/ol3,itayod/ol3,jacmendt/ol3,stweil/openlayers,tamarmot/ol3,NOAA-ORR-ERD/ol3,thomasmoelhave/ol3,klokantech/ol3,alexbrault/ol3,bjornharrtell/ol3,itayod/ol3,ahocevar/ol3,ahocevar/openlayers,fblackburn/ol3,fperucic/ol3,mzur/ol3,tschaub/ol3,itayod/ol3,tamarmot/ol3,klokantech/ol3,bjornharrtell/ol3,NOAA-ORR-ERD/ol3,fredj/ol3,jacmendt/ol3,Distem/ol3,bartvde/ol3,planetlabs/ol3,alexbrault/ol3,bartvde/ol3,thomasmoelhave/ol3,gingerik/ol3,klokantech/ol3,tschaub/ol3,jacmendt/ol3,tschaub/ol3,geekdenz/ol3,stweil/openlayers,tschaub/ol3,gingerik/ol3,itayod/ol3,geekdenz/ol3,bjornharrtell/ol3,geekdenz/openlayers,Distem/ol3,adube/ol3,NOAA-ORR-ERD/ol3,openlayers/openlayers,thhomas/ol3,thomasmoelhave/ol3,tamarmot/ol3,kjelderg/ol3,kjelderg/ol3,NOAA-ORR-ERD/ol3,geekdenz/ol3,thhomas/ol3,thomasmoelhave/ol3,fperucic/ol3,oterral/ol3,ahocevar/openlayers,oterral/ol3,ahocevar/ol3,alexbrault/ol3,openlayers/openlayers,ahocevar/openlayers,geekdenz/ol3,adube/ol3,ahocevar/ol3,fblackburn/ol3,jacmendt/ol3,stweil/ol3,thhomas/ol3,ahocevar/ol3,bartvde/ol3,mzur/ol3,fperucic/ol3,fredj/ol3,fredj/ol3,openlayers/openlayers,Distem/ol3,mzur/ol3,planetlabs/ol3,gingerik/ol3,geekdenz/openlayers,kjelderg/ol3,fblackburn/ol3,tamarmot/ol3,fblackburn/ol3,fredj/ol3,adube/ol3,oterral/ol3,alexbrault/ol3,Distem/ol3,mzur/ol3,thhomas/ol3,planetlabs/ol3,planetlabs/ol3,gingerik/ol3,bartvde/ol3