Enhancement: Added signal handler for "SIGINT"
Enhancement: Added missing scope to catch blocks
Enhancement: Added "dNG.pas.data.CachedFile" and
"dNG.pas.data.CachedJsonFile"
Enhancement: Added "dNG.pas.runtime.InstanceLock" and
"dNG.pas.runtime.ThreadLock" with timeouts for aquiring the lock
Fix: Fixed URLs used by "dNG.pas.vfs.file.WatcherMtime" and
"dNG.pas.vfs.file.WatcherPyinotifyCallback" for callbacks.
Change: Used "dNG.pas.data.TracedException" if applicable
Change: Source code is now located under "src"
Trivial: Added "audio/mpeg" and "video/mpeg" aliases