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

support video recording on windows with automation and headers

enable png support under win32

hgignore and skip one config file for win32

download SDL dlls if not present

update SDL headers for winutils

Make explosion look depend less on fps

fuuuuuuuuuuuu don't use stack checking

missing nil test

Flag script parsecommands to avoid echoing to net

Get rid of C-style operators

better?

Ok. Seems to me if you disconnect on any page, you should go to the main net page, since presumably you were in some part of net play. I think this should avoid ending up in a "lobby" after disconnecting