Added styling to index.html output.
Refactored symbol builder to separate function. Added comment builder.
Updated lexer driver output.
Fixed bug with unrecognized tokens interrupting lexer.
Added comment builder for alternate comment symbols.
Refactored comment builder.
Added comments to comment builder.
Renamed nextSymbol() to buildSymbol() in Lexer to better reflect function's purpose. Added documentation for Lexer.buildSymbol(). Minor update to comments.