2.3 released

Includes fixes for bugs that no one (except, of course, me) seems to
have noticed. In a way that's a good thing. :-)

- Implemented #39: breakpoints on thread start and death.
- Implemented #40: breakpoints on class prepare and unload.
- Implemented #41: breakpoints on field access and modify.
- Implemented #67: display system properties in about dialog.
- Implemented #470: added regular expression support to search view
  feature. Updated the source view help file.
- Fixed bug #526: Java parser was setting first class line to zero
  when class appeared to contain no executable code.
- Fixed bug #527: commands utilizing the peek function of the new
  command arguments support would fail to work correctly.
- Fixed bug #528: some breakpoints were still acting as listeners
  after being removed, causing problems.
- Fixed bug #530: load command with -cp option with spaces in path
  was misinterpreted as multiple arguments.

enjoy

nathan