Updated recurring text re: cc0 and open data

Conflicts:

	dspace/modules/xmlui/src/main/webapp/i18n/messages.xml
Announcement text for Pricing and Journals pages.

This also required adjustments to the CSS for special-announcement, which is still inline in both pages.

Conflicts:

	dspace/modules/xmlui/src/main/webapp/themes/Mirage/pages/integratedJournals.xhtml
	dspace/modules/xmlui/src/main/webapp/themes/Mirage/pages/pricing.xhtml
Dynamic currency display for Pricing and Integrated Journal pages.

Conflicts:

	dspace/modules/xmlui/src/main/webapp/themes/Mirage/pages/integratedJournals.xhtml