[facet] use facet name as input name for text widget (eg has_text)
we need to ba able to distinguish between text-inputs so we can write
a widget for a single facet that uses more than one text input.
This fix consists in the diff in cubicweb.facts.js; modifications in
facet.py result from this former.
\.svn
^build$
^dist$
\.pyc$
\.pyo$
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\~$
\#.*?\#$
\.swp$
^doc/book/en/apidoc$
\.old$
syntax: regexp
.*/data/database/.*\.sqlite
.*/data/database/.*\.config
.*/data/database/tmpdb.*
.*/data/ldapdb/.*
^doc/html/
^doc/doctrees/
^doc/book/en/devweb/js_api/