MIDI2LR: all versions and old releases

## Bug fixes
* This release fixes two concurrent operation bugs that may crash the program under certain rapid usage cases. All users should update to this version even if they have not yet encountered this issue.

Bug fix for 6.2.0.1
- Removed local adjustments curve controls as they were non-functional.
- Local adjustments apply preset still fails to apply point curve, but will clear the point curve if the local preset does not have a point curve.
- Users of 6.2.0.1 do not need to update.

New features
- New commands:
- HDR portion of basic adjustments panel added. See list of commands, section on HDR for details.
- Lens blur commands added. See list of commands, section on Lens blur for details.
- More local adjustments commands added, for p̶o̶i̶n̶t̶ ̶c̶o̶l̶o̶r̶s̶,̶ ̶m̶a̶i̶n̶ ̶c̶u̶r̶v̶e̶,̶ ̶r̶e̶d̶ ̶c̶u̶r̶v̶e̶,̶ ̶g̶r̶e̶e̶n̶ ̶c̶u̶r̶v̶e̶,̶ ̶b̶l̶u̶e̶ ̶c̶u̶r̶v̶e̶,̶ grain, refine saturation, and toning hue/saturation/luminance.
- Masking now available for landscape.
- Impromptu slideshow (under View submenu).
Improvements
- Improved speed in communication with Lightroom.
- Sped up loading of keywords at startup.
Bug fixes
- Occasional crash on close in macOS fixed.
- Minor bug fixes (probably unnoticed by most if not all users).
- Improved handling of keyboard language identification on Windows machines.
- A few translations fixed.
Known bugs in this release
- Local adjustments apply preset fails to apply point curve.
- Local adjustments curve controls don't work (Maincurve, Pointcurve, etc.).

New features
- Fine adjustments This enables more precise adjustments of development parameters than were formerly available. There are new commands under the MIDI2LR develop submenu:
- Fine 2
- Fine 4
- Fine 8
- Fine 16
- Fine Off
- Fine Increase
- Fine Decreasethat can be assigned to buttons. These buttons engage a "fineness" amount that affects all your adjustments until you cancel fineness. For example, pressing Fine 4 will restrict the editing range to 1/4 of the usual range, centered, if possible, on the current value for all parameters on your controller. Pressing Fine 4 when Fine 4 is already in effect will cancel fineness. Pressing any other Fine number button when Fine 4 is active will change the fineness value to the new number—for example Fine 16 will reduce the editing range to 1/16 of the usual, again, centered on the current value for each parameter. This works the same for any of the Fine number commands: the first press engages that fineness, the second press cancels it, pressing any other fineness value switches to that one. You can also program a Fine Off button that will cancel fineness no matter what the current value is. Alternatively, you can use the Fine Decrease and Fine Increase buttons. Increase doubles fineness (2, 4, 8, 16, etc.) while Fine Decrease halves it. If you hit Fine Decrease when fineness is 2, it turns off the fineness adjustment.
- Quick develop Added smaller increment for exposure: 1/6 stop.
Improvements
- App startup time reduced significantly.
- App menus appear quicker.
Bug fixes
- Crop adjustments Interaction between different adjustments could, on occasion, cause loss of tracking of MIDI controller values, now fixed.