Add parser function for friends
Use info in monster.txt for placing group monsters
Test input for filthy urchin, to make sure things work
Change entries to use the monster name instead of the monster index
Add level throttling
Add instructions for friends lines
Fix friends so multiple groups appear properly
Allow option for "Same" in the friend name field
Make uniques appear correctly
First run-through of monster.txt
Allow monster-base lines in monster.txt, allowing for incorporation of
Antoine's suggestions.
Fix some monster names that were previously incorrect.
(cherry picked from commit 8ed87365fa71c81d54ee96a8203ed448049040a5)
Add some error-checking for monster race names.
(cherry picked from commit b59cdc8a26f20a6f4e124c3e0164200ef36ee1b5)
Fix all code instances of FRIENDS and ESCORT flags
Merge fizzix's friends branch.  Closes #1492.

Conflicts:
	lib/edit/monster.txt
	src/monster/melee2.c
Fix an instance of LOSE_CHR to LOSE_CON