can initiate truth table
initTable() works
Draws left-hand side of truth table to GUI
Fixed formatting
addColumn() works
Added jar files to git... oh god why
Merged recent changed back into updated master (with ButtonPanel)
Renamed files
Made minor changes to get ButtonPanel and WffChecker playing nicely
More minor changes to ButtonPanel and TestButton, should be ready for delivery
Minor updates to grammar, CLI, and TestButton - now with Parse Tree display on Submit
Deleted unused files
Merge branch 'master' into HEAD

Conflicts:
	.classpath
Got error text in the ButtonPanel, replaced parser error listener with VerboseListener
Got error text in the ButtonPanel, replaced parser error listener with VerboseListener
Replaced unicode chars with 'T' and 'F'
Added comments
Fixed comments
Updated classpath, added libraries properly (hopefully)
Merge branch 'wffchecker-buttonpanel'

* wffchecker-buttonpanel:
  Got error text in the ButtonPanel, replaced parser error listener with VerboseListener
  Got error text in the ButtonPanel, replaced parser error listener with VerboseListener
  Minor updates to grammar, CLI, and TestButton - now with Parse Tree display on Submit
  More minor changes to ButtonPanel and TestButton, should be ready for delivery
  Made minor changes to get ButtonPanel and WffChecker playing nicely