As of VIM 7.3 it is no longer possible to specify the encoding in the
modeline. This gives an error message whenever such a file is opened,
thus this commit removes the enc setting from the modeline.

I used the Latin of the first century
B.C., so the word are written as Cicero wrote: for example there isn't
the 'v' letter unless in capital form and if the word ending in -uus
or -uum, I wrote -uos and -uom. This form of Latin, as I said, is that
of the classic authores as Cicero, Caesar, Sallustius etc...

This patch also removes legacy support for @USER@. Only %USER% is valid
now.

There are two new parameters submitted that contain the currently
selected namespace and page id so it can be selected again
indenpendently from the opened namespace.

Previously the content of expanded namespaces was displayed below
all other pages, now it is placed below it's parent namespace.
The new comparison function is quite complex. Please have a look at it
if it can done easier or if there are cases I haven't considered where
the function produces incorrect results.