FIX: Was not quitting correctly when closing page.
FIX: Color of active "tab" in navigation header.
FIX: Small enhancements in user interface.

Help in new work creation.
All texts in one language.
Better titles in elements.
FIX: Push away buggy users (work page).
FIX: No error on user rename (fixes a028418).
FIX: Some visual modifications.
FIX: List is empty when no work is present.

After 9499447, completes 12413c6 with b72d47a.
FIX: In forum page, link to last message works.
FIX: Work creation failed when user was authenticated.