v0.9.56

• Fixed TFS Release issues (Thanks to @Alea81)
• Report build, which have failed to start for Team City (Thanks to @pprudich)
• Added PRTG service (Thanks to @Alea81)
• Added Drone CI service (Thanks to @maximelebastard)
• Added Circle CI service (Thanks to @maximelebastard)
• Fixed issue in TFS service (Thanks to @meeces2911)
• Added HTTP support for TFS Release service (Thanks to @dreanor)