wishlist: flip/mirror images

[ecraven]

As feh can already rotate images, it would be great if vertical and horizontal flipping were also implemented.
Thanks!
Peter

[livibetter]

@derf, what do you think about @c78cee50a4c33e2286ad? (Doc hasn't added yet.)

I expanded the current in-place edit to include these two new actions.

(PS. There are 9 issues opened currently, but this one is #53. So embarrassing... and there is typo.)

[derf]

@livibetter, yup, that one looks good. I don't know where to pull and merge your commit, though... github is confusing me.

[livibetter]

I will open a pull request later. I haven't added doc and do I need to assign default keys for them? If so, any suggestions?

[derf]

Just found it. Assigning default keys probably won't hurt, yeah.

I could also merge now and add documentation & default keys myself, choice is all yours ;)

As keys, | for vertical flip and _ for horizontal flip ("mirror") should be okay.

[livibetter]

oh wait, about doc, maybe you will add later? (I have no idea how to edit man page)

[livibetter]

oops, we are comment-racing.

Okay merge now, and I will let you do the doc and default keys. (I am lazy) :D

[ecraven]

thank you very much, works perfectly!