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Closes #2593.

Exclude EOL-ed Py3.3 from list of supported CPython versions (since we cannot test it on travis anymore). Probably not a big deal for anyone out there, given that even LTS distributions tend to have at least 3.4.

Also exclude the parser from compilation, since its binary size is almost 1MB, but it only contributes a couple of percent to the overall runtime.

Remove some large binary modules from the compiled Cython installation that contribute almost nothing to the compiler speedup (and thus only waste disk space and build time).

Switch setup.py script to calling cythonize() through "new_build_ext" to get a clean split between the "translate" and "compile" steps. Previously, it would alternate between the two, which meant that Cython was already partially compiled while it was still being used.

Revert "Do not compile Lexicon.py. It's really only used once and is much larger as a binary module than as a byte code file, but not slower to import."
Currently seems to be required when the scanner is compiled.
This reverts commit d66405c6.

Do not compile Lexicon.py. It's really only used once and is much larger as a binary module than as a byte code file, but not slower to import.

In general it's best for actions performed in `setup.py` to be deferred until the command to which they are relevant is actually run.  For example most of what `compile_cython_modules` does should be deferred until finalizing the `build_ext` command.  But as a simpler workaround, just ensure that anything it prints is to stderr.

Otherwise this breaks certain assumptions, such as that `./setup.py --name` will print (on stdout) the distribution name (and nothing else), and likewise for `./setup.py --version`.

Cython.Build brings in cythonize, which is not in a Py3.2 compatible file.

do not use cythonize() but Cython.Distutils in setup.py to avoid Cython compilation when not building the extensions

clean up extension building in setup.py: clarify what's Py3.2-specific and use cythonize() instead of Cython.Distutils