Log message:
Improve EGG_NAME default to work for packages with '-' in their name.
Remove now unnecessary overrides in various packages.

Fix various problems while here, including marking packages as not ready
for python-3.x.

Log message:
Remove FETCH_USING.
It is a user-defined variable and should NOT be set in Makefiles.

Log message:
Import ninja-ide-2.3 as wip/ninja-ide.

NINJA-IDE (from the recursive acronym: "Ninja-IDE Is Not Just Another IDE")
is a cross-platform integrated development environment (IDE). NINJA-IDE runs
on *BSD, Linux/X11, Mac OS X and Windows desktop operating systems, and allows
developers to create applications for several purposes using all the tools and
utilities of NINJA-IDE, making the task of writing software easier and more
enjoyable.