BuildDistribution script: split off project generation (separate script), can run from any directory, reduced output to a minimum (errors, success or fail messages)
generate project script: added echo
SB project: added Run Script build phase where devs can uncomment lines in order to generate (update) the Xcode template projects on every build
build distribution cleanup, improved logging (avoid "rm: file does not exist")
SPRITEKITPROJECTNAME build fixes