WIP Improve ERP5 Queries behavior to fix ERP5JS backslash issue
/bug #20180123-D78557
Please see https://www.erp5.com/web_page_module/9331/getData
Appendixes :
- Original Behavior
 - With fix on double backslashes
 - With fix on avoid to render invalid queries for non SearchableText columns
 - Put double quotes only if necessary
 
All these commits do not modify the query parser. Only the renderer. (For the moment.)
/cc @vpelletier
See also jio!106