Fix client.call method done callback issue (if server method return type is void, callback isn't called) Remove trailing spaces in source code
Fix client.call method done callback issue (if server method return type is void, callback isn't called)
Remove trailing spaces in source code

sergey-buturlakin/signalr-client-nodejs,instaforex/signalr-client-nodejs,mwwhited/signalr-client-nodejs