initial release
* HydraEngineController.cs: Add 'primaryModeName' and
  'secondaryModeName' configuration options and display those in the
  UI. 

* SmarterGimbal.cs: Comment out debug spam.
Add readme.

And throw in a line of text later on to see how it looks in github's web hook api.
Run in OnFixedUpdate() instead of FixedUpdate() so we wait until being
activated.
Slightly rework engine adding.
Disable roll control if the part was not placed with symmetry.
Tidy up project a bit.

 * Junk for relocated dev install.
 * Ignore ExsurgentEngineering.dll
 * Stop copying all the other damn DLLs.
Add gimbalRange config value for stock ModuleGimbal compatability.
Make a subclass of stock ModuleGimbal.