[feladat @ 213] Modified the inserts in the pgsql db structure to make sure no duplicate key errors are shown when a new records is created. Also moved the Ueber_user permision item upfront, to make sure it is created with id 1 so the permission template can be created correctly. Added an additional query to check what the ID is of the ueber_user, as it set hardcoded to 53 in the query.

[feladat @ 212] Minor change to Dutch translation.

[feladat @ 211] Update of template translation file. Update of Dutch translation. Update and cleanup of some user interface text.

[feladat @ 210] Lots of minor updates to user interface text.

[feladat @ 209] Modified some of the INSERT queries to make them compatible with pgSQL

[feladat @ 208] When in the zone listing letters are shown (too many zones to show on a single screen), the start letter is clickable only if there are any zones starting with that letter. If the users asks for a start letter that has no zones (because of bugs like the one fixed in r207 or because user manipulates URL in browser), a PHP error was shown. Code now verifies number of zones now first.

[feladat @ 207] Bugfix. The letters shown just above the list of zones was showing clickable letters, even if there were no zones starting with such a letter.