…. cleaned up CSS for demo. refs #2

…onger be present. refs #2

…to allow for escapes, leading or trailing spaces, and the full character set that is legal for quoted identifiers, where allowed. fixed datatype names that did not display correctly in generated AST. fixed string literal definition to allow all possible input. refs #2

…ation. changed error message format for smart errors. refs #2

…is nothing to put inside them. fixes for css in demo. refs #2

…put SQL. still need to make sure previous tree is not used if a following statement has an error at the highest level. some css improvements to the interactive demo, additional names in grammar.pegjs. need to fork pegjs to get the changes to pegjs core into version control so they are not accidentally overwritten. refs #2

…dependency of the smart error class. removed dependency in core . is now only a again. refs #2