Core/Spells: Removed No Flight Restrictions on Dalaran.

- this was a undocumented change in 4.0.3

Also changed in this revision:
some Engrish was removed.
and tied Kezan and lost isles together for scripting.
since lost Isles is basically an extension of Kezan,
and questing is intertwined.

Signed-off-by: bootz <bootz@projectskyfire.org>