Suggestion : reset cropping to entire image and proportions

[pierrelabreche]

When resetting image to entire image, the proportions drop-list remains selected as previously set.

The selected proportions become inconsistent with the actrual cropping rectangle.

Suggestion:
If the entire image is not of the selected proportions, reset the proportions to "Arbitrary" rather than keep the inconsistency.

[jsachs]

For the next version, I changed the reset crop box command in the right-click menu to do the same thing as the reset crop box command in the tool bar, namely to make the crop box as large as possible while preserving the current proportions. To get the full image, first change proportions to arbitrary.