DotNetCoreBuildServer 0.21.40.0

Features:

• Parallel queues support;
• Simple file logging;
• Estimate build end time;

Improvements:

• Build commands does not require type "build" for build something;
• Use RequestContext to call commands only once on requested channel;
• Stats: skip tasks which is not exist in last build;
• Console log disabled by default;

Fixes:

• Use updated file logging with working append=false;
• Removed potential synchonization problem;
• Correct stats report for concrete build;