Regenerate controlled vocabularies

Now they are named using their DSpace field name. I generated them
like this:

    $ ./util/export-controlled-vocabularies.py -i data/iseal-core.csv --clean -d
    $ ./util/export-controlled-vocabularies.py -i data/fsc.csv -d

data/controlled-vocabularies/is-focus-sustainissue.txt

@@ -0,0 +1,12 @@
+Child rights and wellbeing
+Climate change
+Consumers and supply chains
+Forests and other ecosystems
+Freshwater and oceans
+Health and wellbeing
+Livelihoods
+Participant costs and benefits
+Pesticides, fertilizers and soil
+Plant and wildlife conservation
+Rights of indigenous peoples and local communities
+Wages and workers' rights