New features:
- New astrometric tool
- New comet registration method (see video here)
- Preview for color saturation, asinh mapping, histogram transform and wavelets
- Added ability to join SER files
- Added a command stream using named pipes
- Added RGB flat normalisation for CFA images and command GREY_FLAT
- Added SETFINDSTAR command to define sigma and roundness parameters
- Added ASINH stretch command and GUI function
- Added RGRADIENT command and GUI function
- Added negative transformation