Added i18n tags for new Ladder views

Added i18n tags to all templates related to Ladder views. These have been added to the English locale and translated by me and my good friend Anton to NL (Dutch).

Concerning the strange commits in this pull request: Somehow my commits keep getting lost across branches. The first two commits are the mistakes and the last one is simply an undo of their additions, which was the easiest way I found to fix it in an acceptable manner.

Diplomats needed for other languages! Additions have been made to the 'general' section, as well as a new section called 'ladder'.