v0.1.2

Changelog:

• [windows-specific] Hide console window on execution
• [backend] Run command asynchronously
• Recompile grader for each step instead of running once
  This ensures that static variables are reset, albeit making the grader slower by more than 4x

v0.1.1

Changelog:

• Catch all exception in assignment java code

v0.1.0

Initial release