Add make clean target
 - remove ./bin folder
Trim docker stdout results
Add volume args to docker run function
Fix connection injection assertion (from .ok() to .object())
Update lohSchema to aaccept undefined containerId ( => return undefined)
Small fixes
 - remove useless trim();
 - a few comments
BitTorrent Sync container now use volumes for their data storage (btsync config and btsync data)
Merge branch 'feature/use-host-volume-for-btsync-storage' into develop