At this time we are temporarily closing the codebase to new features or other significant codebase changes until we are ready to cut the release branch.
Until that time, please focus on bug fixing, testing, and packaging/documentation enhancements.
Code cleanup work, including removal of the 'if 0' code, conversion of tabs to spaces, cleaning up compiler warnings, etc. should either be postponed or completed soon and with great care and testing.
In general I would encourage everyone to set aside feature development or code cleanup work to focus on testing the application and fixing critical bugs. The sooner we can work through this process, the sooner we can have the release completed and be back to regular development. :-)
If instead you'd like to continue with development or code cleanup, please do your work on a branch and plan to merge it subsequent to the release.
Thanks, Bryce