apply unC0Rr's fix for 435 to landscape and non numbered ammomenu

Fix issue #435, and also unreported bug when 2 or even 4 entries could have selection at the same time in weapons menu.

these files had the executable flag/permission set

issue #443 - change in syntax for effects

minor macro cleanup

updated italian translation (#447)

Clear hedgehog's gear Power value when switching. Should fix issue #446 (not tested, but looks obvious).

Oops, fix room players list emptyness

This should cover all entries from issue #438

Fix cake splashing bug (issue #429)

No hacks! Fix issue #437

fix for issue #441 ("Cannot overwrite default weapon set 'Default'!" message when no change to weapon set was made)

Set minimums on a few values to avoid camera zooming out past them. partly issue #430. Might be worth defining a new constant for this.

eh. might as well toss this in for reference purposes

Fix bad loc calls in campaign, rope training. Regenerate lua. Untested.

fix for the root cause of issue #434 (previous pages being visible in the background)

issue #445 spin math

disable F5 key and data refresh

rollback of r08642c7da4a3b5e05be51a8b45995e799bbc4bbf ("add DLC button to net game room")

missed this one when fixing regular flakes. issue #444

0.9.18 release branch

Restore -gv, limit points to template dimensions

-gv was causing broken behaviour

add gsoc students. also sphrix to translators

countless small optimisation for cmake, output messages are now coherent (mostly) and the options get fully respected (eg. skipping library search if not activated)

finally videorec on osx

I hate Windows and it hates me...

add surname to credits