Trying to clean up LL parser
Parsing JSON expressions
Worked out some bugs in my expression parser

Most of this was related to bugs in the code that delimits the JSON expression but I also
fixed some issues with the way lines and columns were counted.
Added a testing involving modifications and made a test more tolerant
Getting rid of old stuff
Recoverd a file I accidentally deleted and correct a bug in JSON delimiting
All tests passing again using new parser and wth JSON values