…gjs. make sure that a description is not repeated in smart error message. comment rules should not use sym_x rules since you should not be able to put a space between the two symbols at the start and/or end of a comment. refs #2

…ols at the start and/or end of a comment. added some extra helper rules to CREATE statement rules to help the tracer avoid traversing the wrong create statement type. characters in identifiers now includes dollar sign and no longer includes dash for unquoted values. since SQLite itself is tolerant of this behavior, although it is non-standard, parser allows single-quoted string literals to be interpreted as aliases. refs #2

…asks to switch between minified and normal bundle in the demo/index.html file. refs #2

… demo on top of source in demo folder. grunt live now puts assets for interactive demo into .tmp folder and then grunt demo creates a min bundle in the demo folder. raw source for interactive demo now exists in src folder in demo subdirectory. now using grunt-contrib-cssmin to create single css bundle file for demo. refs #2