[devtools] Make timeout error in qunit tests configurable and use SkipTest in test_jscript.py
This is grafted from 87443f279b0f in default branch (got tired of CI failing
because of these unreliable tests).
Document: cubicweb-doc
Title: CubicWeb Documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developpers
Section: Apps/Programming
Format: HTML
Index: /usr/share/doc/python-cubicweb-documentation/html/index.html
Files: /usr/share/doc/python-cubicweb-documentation/html/*