Bug 12275: Small corrections to English web installer

Bug 12275: Small corrections to English web installer

- Corrects the German translation for 'Laotisch'
- Adds an icon to the reference item type
- Corrects capitalization for user permissions

To test:
- Run English web installer, make sure to select
  the sample item types and all mandatory data
- Check user permissions appear correctly
- Check icon for REF itemtype is shown correctly
- Check that languages in Advanced Search appear
  as normal
- Install German and check in language list on
  advanced search 'Laotisch' now appears

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Works well following test plan.
No errors

Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>