Bug 7979 tiny follow-up for translatability (string freeze)
A few tiny string changes have been introduced, that I revert with this patch as we're string freeze
* Advanced search had been changed to Advanced Search (useless capital S). this is a mistake, I've reverted
* same thing for Koha administration
* the suggestions/comment/tags links have had a <span> and : added, the translator tool consider them as being changed. Switching back to the previous display.
The suggestion/comment/tags change can probably be reintroduced later