n2t:  start work on adding JSON support.
n2t:  add NewKind
n2t:  stop use Category
n2t:  remove Category
n2t:  11 remove use of old Kind outside of SymbolTableBuilder
n2t:  1l, remove old Kind
n2t:  11, remove more uses of old Kind in SymbolTable
n2t:  11, remove old Kind from Identifier
n2t:  11, rename NewKind to Kind
n2t:  11, remove commented code
n2t:  11, replace null with NONE and add var and field count to subroutineDeclarations
n2t:  11, remove CodeWriter's dependency on SymbolTable
n2t:  11, refactor DoTerm method
n2t:  11, complete JSON example.
n2t:  11, remove redundant code from JSON example
n2t:  update gitIgnore