fix(sync): report modif of 2.0 (refs #4533)
feat(param): Push js warning limit (refs #4546)

The default js function warning execution is 20 seconds on slow
computers when the document are inserted the message is displayed
push the limit to 30 minutes
Merge pull request #69 from cbonnissent/correctSynchro

Correct synchro (closes #4533, closes #4546)