remove old simulator before updating
Implement mechanism for dispatching actions to a running fiber
Merge pull request #215 from Icenium/paletov/fix-access-violation

Implement mechanism for dispatching actions to a running fiber
Merge pull request #211 from Icenium/dragnev/remove-old-simulator

remove old simulator before updating
improve property value and property help printing

* don't print the property help twice
* prop-print with no arguments prints all project properties, instead of the help