Merge branch 'generate-pot' into 'master'

Add a generatepot target to build the manual pot files for translations

See merge request !6

Makefile

@@ -49,6 +49,9 @@ update:
 	git checkout $(MAHARA)_STABLE
 	git pull
 
+generatepot:
+	$(SPHINXBUILD) -b gettext source potfiles
+
 fetchtranslations:
 	/bin/bash generate-mo-files.sh $(MAHARA)
 	#Delete translated images submodule, then init/update it from remote