_pext_vrinputs: added cvar to enable vr inputs protocol extension allowing vr inputs to be networked to ssqc too. defaults to 0 for now, will be renamed when deemed final.
updates menu: the prompt to enable sources is now more explicit instead of expecting the user to have a clue.
updates menu: added a v3 sources format, which should be more maintainable. not final.
updates menu: try to give reasons why sources might be failing (to help blame ISPs if they try fucking over TTH dns again).
presets menu: no longer closes the instant a preset is chosen. some presets have a couple of modifiers listed. force the demo loop in the background to serve as a preview.
prompts menus: now does word wrapping.
ftemaster: support importing server lists from other master servers (requested by Eukara).
server: try to detect when non-reply inbound packets are blocked by firewalls/nats/etc (using ftemaster to do so).
qcvm: added pointcontentsmask builtin, allowing it to probe more than just world, with fte's full contentbit range instead of just q1 legacy.
qcvm: memfill8 builtin now works on createbuffer() pointers.
qcvm: add missing unsigned ops. Fixed double comparison ops. fixed bug with op_store_i64. added missing OP_LOADP_I64
qcc: added '#pragma framerate RATE' for overriding implicit nextthink durations.
qcc: fixed '#pragma DONT_COMPILE_THIS_FILE' to not screw up comments.
qcc: added __GITURL__ __GITHASH__ __GITDATE__ __GITDATETIME__ __GITDESC__ for any mods that might want to make use of that.
qcc: fix up -Fhashonly a little
setrenderer: support for vulkan gpu enumeration.
rulesets: reworked to support custom rulesets (using hashes to catch haxxors, though still nothing prevents just changing the client to ignore rulesets)
bspx: use our BIH code for the bspx BRUSHLIST lump instead of the older less efficient code.
(static)iqm+obj: these model formats can now be used for the worldmodel (with a suitable .ent file). Also using BIH for much better collision performance.
pmove: tried to optimise PM_NudgePosition, should boost fps in stress tests.
wayland: fix a crash on startup. mousegrabs now works better.
imagetool: uses sdl for previews.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5813 fc73d0e0-1445-4013-8a0c-d673dee63da5
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