Merge branch 'pregmod-dev' into 'pregmod-master'

updated documentation to declare 0 to -20 as a reserved ID range.

See merge request pregmodfan/fc-pregmod!3503

player variables documentation - Pregmod.txt

@@ -333,10 +333,14 @@ accepts string
 father:
 
 your father
+Accepts ID
+Values between 0 and -20 are reserved.
 
 mother:
 
 your mother
+Accepts ID
+Values between 0 and -20 are reserved.
 
 sisters:
 

slave variables documentation - Pregmod.txt

@@ -3136,13 +3136,16 @@ mother:
 
 Slave's mother's ID
 Accepts ID
+Values between 0 and -20 are reserved.
 -1 - player
 
 father:
 
 Slave's father's ID
 Accepts ID
+Values between 0 and -20 are reserved.
 -1 - player
+-3 - player's former master
 
 sisters: