remove_unsafe_private_use isn't necessary in current Python.

As of Python 3.3.3, the bug that made `remove_unsafe_private_use`
necessary is fixed. The function will remain there, but it's not used as
a part of the `fix_text` process anymore.

Along the way, added more comments and expanded docstrings.
add the streaming Twitter tester
Be forgiving of some punctuation. Fixes #10.
Merge branch 'master' of https://github.com/LuminosoInsight/python-ftfy
Merge in the ellipsis fix (fixes #10)

All-caps text ending with U+2026 HORIZONTAL ELLIPSIS should now be left alone.
Merge branch 'streamtester' into fix_ellipsis
Refactor so we can have non-live-streaming testers
fix an inaccurate comment
Put back `remove_unsafe_private_use` to avoid an API change

I was removing this option prematurely, because the characters it
removes are no longer unsafe in up-to-date Python. However:

- Removing the option would be an API change that breaks compatibility
- Some versions of Linux distributions are still on Python 3.3.2, and
  will not update it without a distribution upgrade

This reverts commit df479e622f6791bc6a9f336eb28bec57722872d1.

Conflicts:
	ftfy/__init__.py
enable one more test that now works
Add a manual fixer for escape sequences (fixes #19)
Merge branch 'master' into fix_ellipsis
bugfix: build_data would not have generated the correct file

build_data got refactored at some point without being tested. It would
not generate the correct char_classes.dat file, because it was saying
that reasonable Latin letters had to be lower than 0x20 (it meant
0x200). There are no letters below 0x20.

Despite this bug, char_classes.dat was correct from a previous version.
Manual testing shows that, with the bugfix, it generates the same
char_classes.dat file that is being distributed.
bugfix: args were mixed up in ftfy.fix_file
docstrings, pep8, and pylint fixes
documentation updates
add another test, show progress of streamtesting
update the text_cost docstring
update docs and version number
Merge pull request #23 from LuminosoInsight/fix_ellipsis

Fix false positives due to ellipses