Linux 1.3 to 1.4.2 Point Release

Description
This patch will upgrade your current Quake 4 1.3 version up to 1.4.2.

The changes are as follows and include all the beta patches up to this point:
* player lean, player models lean in the direction of movement
use g_playerLean to scale or disable the effect (client side)
* fix wallhugging on ramps
fix also makes ramps slightly faster
* horizontal speed fully maintained when crouch sliding and hitting a ramp
previous version had a little dip
1.4.1 had a bug that caused a sharp speed drop (this is also fixed)
* RG ammo box 10->7
* si_fps limited to 90fps for q4mp/, now declared in gamecode so mods can change their max
* predict weapon changes for the local client. more responsive on high ping
(can be turned off with net_clientPredictWeaponSwitch 0)
* revert the projectile code to 1.4.0, not trying to predict projectiles anymore
the prediction code of 1.4.1 can be enabled with g_predictProjectiles 1 (client side)
(was causing too many bad artifacts)
* reworked the hit sounds / hit feedback propagation. fixed skipping problems
* change network demo extension to include the protocol number
for Quake 4 1.4.2, the extension is .ndmo85
* fix network demos not setting the si_fps value properly
* fix client prediction being irregular when connected to a TV repeater
* added r_skipSky for a cheap black sky
* fix a crash in single player (sound related)
* fix several SMP-related crashes
* fix a crash in autodownload server
* hud_showSpeed cvar (shows current horizontal speed)
* hud_showInput cvar (shows the input state to learn how to make particular moves)
* hud_InputPosition, alters where the showInput feedback is displayed
* hud_InputColor, alters the highlight color of the showInput feedback
* s_useOcclusion no longer cheat protected (can be changed by network clients now)
* no gauntlet spinup time, damage is immediate now
* bse_rateLimit defaults to 3, showing all shotgun pellet impacts
* added g_nailTrail, g_grenadeTrail, g_rocketTrail, g_railTrail, g_napalmTrail to disable weapon trails
* updated reference netdemo included for performance tests: id_perftest.ndmo85

[b]The 1.4.2 update affects pure server and protocol consistency. Therefore, players who update to 1.4.2 from ANY previous version will only be able to connect and play against other 1.4.2 users. Save games and demos created on any previous version of the game will not be compatible with the 1.4.2 update.[/b]