Sound fix typo

#master
Add Sound + Fixes ...

Add some functions to handle the sounds.
Change the function UTIL_Free to a macro.
Fix some typos in the comments.
Add new API functions.
Merge remote-tracking branch 'origin/Micapat' into Asmature
Add Precache + Add functions to play sounds
Entity header + API functions + Fixes

Add entity header.
Add macros for bitwise operations.
Add new API functions.
Fix the function Kr_Sound_Play.
Add a check in UTIL_PlaySound.
Engine wrappers + Entity data + A lot of fixes...

Add engine wrapper functions.
Change *_Free to *_Quit for some functions.
Add entity data.
Change "screen" to "renderer".
Do a lot of fixes...
Add Log + Replace old log message

Replace fprintf(stderr...) with Kr_Log functions
Add entity functions + Add 10 new files.
Fix commentary + Add param to Kr_Init

Kr_Init has a new parameter K_LogType to set the default level of
printing in Log
Merge remote-tracking branch 'origin/Asmature' into Micapat
Add entity comments + A lot of fixes...
Update karin.c

Doxygen...
Update log.c

Change fprintf to fputs.
Update engine.c
Merge pull request #1 from micapat/Micapat

Validé.