* FluxoWSProcess.java: added credAuth(); tried to add credential-checking in getDownloadStatus()
* DbManager.scala: added authCredentials()
* Utils.scala: added hashString()
* FluxoWSProcess.java: added credentials-checking on getTorrentUrl(), getHttpUrl(), getHttpUrlC() and getDownloadStatus()

+ SetCredentials-0.4.5.jar: This module deals with setting credentials into the database
+ setcredentials.sh: shell script to invoke SetCredentials-0.4.5.jar (needs to be run before the daemon itself)