Merge fixes from OpenJK

[Silverfang22]

Stopping here to post, still need to go through commits from before Dec 23, 2016

Commits are shown in each category with newest commits at top

Tried to not include reverted changes...hopefully didn't miss any

rd-common
b5796b9
a8b7a75 (also rd-vanilla, sdl, and sys)

botlib
be7dbae (warnings fix)

sys
45a05fe
c9e1de8

qcommon
b5d4273
28c7273
561bf29 (windows compile fix)
c9e1de8
a962075
faeacb5

rd-dedicated
e02a0df
6b234a6 (warnings fix)

Client
c62c0f2 (legacy mods G2 API fixes)
b48f71e (g2)
dd3a1c8 (g2)
4090e09
dac8819
89cebbc (and qcommon)
71325ab
948b55b (and server)
c9e1de8 (qcommon and sys)
03d66c1
cbe2d2a

UI
94866c4
e2c254b
5a3f8d9
a358891 (EAX icon, probably unnecessary)
72ae574

SDL
528488e
7d01241
ffe7ffe

CGame
ffa5568
efbeb7c (Includes Game and Vehicle code fixes)
58e5a20 (unused define removal)
7f23591
18324ba (also game, qcommon, ui, rd-common, compiler warnings fix)
36b6759 (also client)
210c6a8

Game
4881be7
4fb17cf (Maybe irrelevant)
4cb9711
32dcb33
5dedb33 (mindtrick fix)
92059a6
b248269
0edd860 (and ui and botlib)
ff647b3
bca1d8d (and qcommon)
9c38824

Sound
0218d2d
4974446
c19f5c3
ddb2be1
7cb9015
63e31e8
da0dc70

Server
7b6d53d
962f319
10d96cc
698fe7c (G2 Fix)
083ae51 (G2 Fix)
41bd4d8 (G2 fix)
8b07e58
6aba690
50bde78

rd-vanilla
07675e2
e283f39
2b8b3e6 (MacOS fix)
6a453c3
d00df39
e911615
9f27132
9736ae6
ae3900f (Ghoul 2, rd-common, g2 api fixes)
55de6a6 (compiler warnings fix)
47df6ee
82d8209

[
212d7d8 54bca13 49344ce b993a8c
]

Possibly Irrelevant:
235fb9e
30c3129
18f2049 (holocron fix)
fcf40fc