SECURITY: imagemagick/graphicsmagick was ignoring all errors

So, in a much older patch I had a problem where an incorrect RGB
profile would make image uploads fail. I fixed this by using strpos
against the error message...but didn't check the return value
correctly.

That means that any error from gm/im was ignored. This caused people
to upload too large images and flood /b/ with 1 x 10000 pixel images

My fault, patched now. Sorry about that.

Conflicts:
	inc/image.php
Fix API: Swap image width/height, make replies an integer, fix original filename
Fix expanded tabs
update locales
Merge https://github.com/vichan-devel/vichan

Conflicts:
	inc/image.php
overcome a transifex bug with translation of one string
ajax.js: add ajax_after_post event
fix options.js textareas
show-own-posts.js initial commit
Merge branch 'master' of https://github.com/ctrlcctrlv/8chan

Conflicts:
	inc/image.php
Merge https://github.com/vichan-devel/vichan