WriteBarrier now supporting Dictionary, Set and Interval

[Chris Muller]

I'm happy to announce that Magma now supports Dictionary's, Set's and
Intervals being used with the WriteBarrier.  This should provide most
applications a significant boost in performance.

Currently it is included in the most-recent code, which can be installed via:

   Installer new merge: #maInstaller.
   (Smalltalk classNamed: #MaInstaller) new merge: #magmaServer

The (head) script on SqueakMap will give you as much, plus Magma's test suite.

Cheers!
  Chris