chore(package): update mocha to version 3.2.0
chore(package): update mocha to version 3.2.0

https://greenkeeper.io/
cozy-labs/cozy-desktop,nono/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop