[book] add autoload section from code and fix sphinx warnings * drop misleading faq entry since clear explanation can be found in internationalization chapter * use autodata sphinx directive instead of raw text * fill empty chapter with autodoc: - devweb/httpcaching.rst - devweb/resource.rst - devweb/views/idownloadable.rst - devweb/views/wdoc.rst * use shebang in excerpt to denote shell code * fix some bad indented docstrings in javascript files

# Run all scenarii found in windmill directory
from os.path import join, dirname
from cubicweb.devtools.cwwindmill import (CubicWebWindmillUseCase,
                                          unittest_main)

class CubicWebWindmillUseCase(CubicWebWindmillUseCase):
    #test_dir = join(dirname(__file__), "windmill/test_edit_relation.py")
    pass


if __name__ == '__main__':
    unittest_main()