Introduced environment instvar in Tools::NavigatorModel. All references to Smalltalk were rewritten to access `environment` instvar instead. The `environment` defaults to Smalltalk (set in #initialize).

*.H
*.STH
notes
makefile
libcomp.*
.listOfSTfiles
.dependencies
*.obj
*.ilk
*.dll
*.lib
*.pdb
*.sbr
*.c
*.sc
*.xc
so_locations
classList.stc
objbc
objvc
objmingw
*.@@@
*.res
*.RES
*.map