[plt-scheme] new DrScheme released to CVS

The exp-tagged source (in CVS) for DrScheme has been
updated. For details on using the intermediate releases, see

  http://www.plt-scheme.org/anoncvs/

RECENT (and not so recent) CHANGES:

  - integrated the module browser into the main drscheme
    window. Use the show menu to open a panel on the lhs of
    the drscheme window containing a DAG representing the
    modules that are required (only works for programs in
    modules).

  - integrated Bruce Hauman's rewrite of the match.ss
    library (ongoing).

  - added arrows to check syntax that show the (syntactic)
    tail structure of the program.

  - fixed many many problems with Help Desk. Some of the
    more interesting ones:
    - manual downloading now works.
    - bug report form is a mred window now.
    - doc.txt highlighting is in the right place now
    - doc.txt search restults now go to the right place
    - servlets are now modules (with no more free vars)
    - browser menus work properly
    - urls outside of our documentation use an external browser
    - eliminated many (now unecessary) redirections
    - various responsiveness improvements 

  - help desk as a standalone web server isn't supported
    anymore.

  - added a status line class to the framework, which is
    used for check syntax and the module browser. both show
    status as the check the program and show information on
    mouse-over. Also, the contour window shows you the line
    under the mouse in a status line on mouse over.

  - added an extra level of hierarchy to the language
    dialog, but without the turn-down triangles. this helps
    organize the language dialog somewhat.

Robby