Plastic jug renamed to gallon jug, plastic moved to description.
Merge branch 'master' into plastic_jug_to_gallon_jug

Conflicts:
	itypedef.cpp
Merge pull request #229 from GlyphGryph/plastic_jug_to_gallon_jug

Plastic jug to gallon jug
Merge pull request #190 from tasetase/freq

Monster Picker
Fixed ridiculously stupid overmap corruption/crash bug.
Centering and bordering.
Compile fix
Lowered spider/wolf ratio -> 3%spider, 3%wolf, 2%cougar/bear ~> 15% rabbit