Merge branch 'release-0.4.7' into develop
Added dot in errors.
Simulators not run in threads any more. Added Populator class to populate expressions with variables values.
Removed print.
Fixed error with thread lock.
Removed simultaneous threads in GUI mode.
Removed test script.
Merge branch 'fix-runtime-error' into develop
Updated CHANGELOG.
Merge branch 'fix-runtime-error' into develop
Added setup.py file.
Merge branch 'setup-file' into develop
Version 0.5
Merge branch 'release-0.5'