more tweaking

reuse buffers

render tweaks

tweak/refactor how water is drawn

tweak code of DrawTextureFromRectDir a bit, removing issue with different x offset depending on dir. also removing the workaround wrt that issue in the frozen hog code

Code drawn map in haskell \o/ (not finished, todo: compressing and base64 encoding)

fix typo that caused visual glitch in water body (e.g. visible on that particular screenie on bottom right corner)

"documentation"

fix some (newly introduces) glitches with normal water

fix pas2c build

little visual tweak to weSea rendering

adding some arrow

speed up tests

Qt-Frontend: update description of findhh to better reflect current behavior. thanks to the friendly reminder in issue #805

remove unneeded import