#1 Fix for recent XEmacs versions

[Marc 'BlackJack' Rintsch]

         +------------------+ 
         |Patch for CSDE 0.1| 
         +------------------+

1. What's this

This is a small unofficial patch for the (X)Emacs C#
Development
Environment (CSDE) version 0.1 to make it work with
current XEmacs
versions. It is tested with XEmacs 21.4.

Any comments please to marc@rintsch.de

The CSDE's home is at http://csde.sourceforge.net/

2. Changes

* The semantic package doesn't provide
'semantic-mode' anymore, so
the require in 'csde-imenu.el' had to be
changed to just
'semantic' instead.

* In 'csde-dbs.el' there where some missing
":documentation"'s
which caused compilation failure of this file.

* The C# method modifier 'virtual' was missing from
the font-lock
file.

[Marc 'BlackJack' Rintsch]