add SDL as an dependency

let animation objects delete themselves after they are not being used anymore PS: I don't like that we create new animation objects every single time before a page transition is done, I'm sure that can be done in a nicer way. But at least we're not keeping those non-reused objects around forever now...

revert tremor back to a version before koda broke it ;p

more like here

merge Medo's GSoC work

Workaround for visual bug. issue #442

merge hedgeroid branch with tip

add flag of the soviet union (issue #297)

fix for issue #432, show ready toggle for room admins, set them always ready, keep the blinking option

merge

forgot to remove these files when reverting tremor

cleanup in initEverything and freeEverything

revert r767d3c4153a1 this tremor implementation is buggy

* fix initialisation, preload values and then read args * respect audio and music settings * a few variables cleanup

disable audio dampening on mobile

polish translation update (bug #448)