fix debugger breakpoints with latest changes in Firefox
Merge pull request #120 from jlongster/master

fix debugger breakpoints with latest changes in Firefox
Released 0.2.2, bump to 0.2.3pre
Implement the displayString request handler.
Fix console.assert(), console.count() and display stacktraces for every console API call
Fix console.dir()
Fix console.group(), console.groupCollapsed() & console.groupEnd()
Fix console.warn()
Fix console.trace()
Fix console.table()
Merge branch 'fix-console-api' of github.com:past/fxdt-adapters into fix-console-api