[web] move qunit test back into web and fix the hanging qunit test can not work outside web. a lot of try/finally clause have been added to prevent qunit to hang on error. A not a test a indeed broken. But we at least put in them a running state again..

+
−#! /bin/sh -e
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− 
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−case "$1" in
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−    remove)
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−	if [ -x "/etc/init.d/cubicweb-ctl" ]; then
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−	    invoke-rc.d cubicweb-ctl stop || true
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−	fi
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−    ;;
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−esac
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− 
+
−#DEBHELPER#
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− 
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−exit 0