Reselim Flipper Versions Save

• Disallow property step in GroupMotor.

Fixes a somewhat critical bug resulting in springs completing too early in some cases.

Adds Linear goals.

• Uses full implicit connection management instead of just automatic starting
  • This removes the need to call :destroy()

• Adds implicit starting, with an parameter in motors that defaults to true
• Changes package name from flipper to Flipper

Initial release of Flipper.