Added Color_ChatGetSubject

Personally used in a custom ReplyToClient function, which sets the chat subject if none has already been set (so {T} always displays a colour).
Merge pull request #11 from theY4Kman/patch-3

Add Color_ChatGetSubject
Fixed function SQL_TQueryF not using the passed priority
Fixed bug in function Edict_GetClosest
The function never returned an edict.
Reported by Mitchell, http://forums.alliedmods.net/showpost.php?p=1850376&postcount=285
Added README.md with some text
Added url to README
Updated README
Made code more readble + tiny optimization
Optimized all call to GetVectorDistance
Inverted condition check, as I believe that there is more chance to find
distant edicts than to find edicts at the same place.
Merge pull request #12 from TheMadSword/master

Optimizations surrounding the uses of GetVectorDistance + one clarification.

Thanks TheMadSword for this.
Added correct parameters to Client_GetFakePing's annotation comment
Merge remote-tracking branch 'upstream/master'