Fix -m compileall

[tito]

When i'm building a distribution with:

p4a create -v --dist_name test --bootstrap pygame --requirements=kivy==1.9.1 --android_api=19 --force-build

I can't get to the end because it breaks to the python distribute part:

[INFO]:    Copying python distribution
[INFO]:    running python.host -OO -m compileall /home/tito/.local/share/python-for-android/build/python-installs/test
[INFO]:    STDOUT:
    Compiling /home/tito/.local/share/python-for-android/build/python-installs/test/lib/python2.7/json/tests/test_unicode.py ...
SyntaxError: ("(unicode error) \\N escapes not supported (can't load unicodedata module)", ('/home/tito/.local/share/python-for-android/build/python-installs/test/lib/python2.7/json/tests/test_unicode.py', 8, None, "u = u'\\N{GREEK SMALL LETTER ALPHA}\\N{GREEK CAPITAL LETTER OMEGA}'\n"))

Compiling /home/tito/.local/share/python-for-android/build/python-installs/test/lib/python2.7/lib2to3/tests/data/py3_test_grammar.py ...
SyntaxError: ('invalid syntax', ('/home/tito/.local/share/python-for-android/build/python-installs/test/lib/python2.7/lib2to3/tests/data/py3_test_grammar.py', 130, 13, '        x = ...\n'))

unicodedata module can't be loaded, so the \N dont work. As for py3 compileall, it just can't work with python host compileall :)

I didn't search what changed about it, but making it non critical works.

(Should we do the same for others bootstraps ?)

[inclement]

I noticed the same problem when I first tried it, but I assumed it was my mistake...I don't know either why it wouldn't work any more.