imported ryan's tutorial code
factored tutorial code into its own file. renamed ids to match button text
initial setup of sequential tutorials
added minimap tutorial. flagged initial convo to be an action
click events now obey the allowKeyEvents flag
added tutorial part two:
 - two sets of tutorial info that each get loaded at different times
 - if you skip first part, second part isn't offered.
moved the policeman over on the ending screen
a few new render images
fixed glow on room 110's evacuation plan
made the fire extinguisher inactive, for now
moved submodule to different github
that wasn't supposed to be disabled.
fixed first floor large evac poster glow and entrance door glow
updated elevator up images
moved ambulance image
open doors are now a black void
merged chalk triggers into one file
reworked the structure of xavier convo
new image for highlighting desk surface
new better sized open door black void