optimized AngleVectors calls (pass NULL for vectors that should not be generated)

optimized AngleVectors calls (pass NULL for vectors that should not be generated)
added VectorVectors (takes a forward unit vector, makes right and up vectors)
corrected silly id spelling mistakes 'allready' and 'allways'
most host_frametime references changed to cl.frametime or sv.frametime
fixed movement interpolation in listen games (host client wasn't lerping the framerate capped server's frames)
added EF_FLAME effect, untested
changed svc_showlmp to use shorts, not bytes (except in nehahra compatibility mode)
broke svc_fog for now
removed svc_farclip
removed svc_playerposition
removed svc_skybox
increased maximum number of models and sounds to 1024 each (and added extra svc_ messages and update bits to handle the new limits)
made punchangle use preciseangles (on DP servers), added punchvector (view origin kick, useful for earthquakes?)
redesigned entire animation interpolation system (can lerp between independently playing framegroups)
redesigned animation scene lookup in model and sprite rendering to use a single system
added a simple clientside effect system (meant for playing sprite explosion animations entirely on the client, with very nice interpolation and framerate control)
added te_smallflash
added te_customflash
added te_flamejet (untested)
darkened lightning glow and made it adjustable (r_glowinglightning cvar is now a scaler, not just an option)
increased maximum number of clientside entities
COM_WriteFile will now create a path leading up to the file
removed cpu_*.* files
reorganized fractalnoise code, now behaves more correctly
stripped out qsg_version stuff, replaced by pr_checkextension and extensions have changed completely (extensions are documented in dpextensions.qc in DP mod and release zips)
made skin and sprite mipmapping optional (r_mipskins cvar, r_mipsprites cvar), saves about 32% of texture memory if disabled
rewrote texture management system (again), now uses flags to specify texture attributes (all textures without the PRECACHE flag are uploaded only when first used, conserves huge amounts of memory), and is cleaner code
r_precachetextures cvar controls how PRECACHE texture flag is used (0 = never precache, 1 = use PRECACHE flag, 2 = always precache)
changed way text filtering mode is decided
now requires vertex array support (standard in OpenGL 1.1 so this is not a problem)
takes advantage of GL_EXT_compiled_vertex_array extension (no speed gain for my Geforce2, may help other people)
reverted to GL transforms for models (no speed gain for my Geforce2, may help other people)
gl_transform cvar controls whether to use GL transforms (1) or software transforms (0), could not measure any speed difference in my testing
r_shadows removed due to GL transforms on models
model and sprite interpolation now handle 4 frame interpolation to accomodate new interpolation system
RSurf_Draw* functions greatly optimized
Host_Error will now Sys_Error rather than crash if Host_Frame has not yet been executed
cleaned up viewthing frame reporting code, now uses the new animation system
can now look directly up and down
ByteToNormal and NormalToByte added in mathlib.c, also moved anorms.h table to mathlib.c
added axial cases for BoxOnPlaneSide (BIG improvement)
trivert2 vertex format removed, now uses alias trivertx_t format as-is (33% less model memory usage and possibly quicker loading)
redesigned map texture loading again (particularly HL maps)
water is now lit on both sides
sprites are now cached like models
sprite loading redesigned to use new animation system
increased maximum packet size to accomodate the largest possible
PF_vectoyaw optimized a little
PF_vectoangles optimized a little
PF_findchain added
PF_findchainfloat added
PF_effect added
PF_te_blood added
PF_te_bloodshower added
PF_te_explosionrgb added
PF_te_particlecube added
PF_te_particlerain added
PF_te_particlesnow added
PF_te_spark added
PF_te_gunshotquad added
PF_te_spikequad added
PF_te_superspikequad added
PF_te_explosionquad added
PF_te_smallflash added
PF_te_customflash added
PF_te_gunshot added
PF_te_spike added
PF_te_superspike added
PF_te_explosion added
PF_te_tarexplosion added
PF_te_wizspike added
PF_te_knightspike added
PF_te_lavasplash added
PF_te_teleport added
PF_te_explosion2 added
PF_te_lightning1 added
PF_te_lightning2 added
PF_te_lightning3 added
PF_te_beam added
PF_vectorvectors added
increased maximum file path length
explosions are no longer round
removed LIGHTSCALE settings
removed r_donttransformmodels cvar
a lot of particle effect changes (bouncing sparks, blood sprays from gibs that stick on the walls)
fixed sound combining so it no longer plays past the end of the buffer
fixed sound resampling

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@183 d7cf8633-e32d-0410-b094-e92efae38249