Py2.5 fix
Add support for tox (http://tox.testrun.org/)
Add .gitignore
Add .travis.yml for Travis CI (http://travis-ci.org/)
fix build
clean up setup.py to require explicit --with-cython option (or non-release build) to cythonize the sources
changelog
fix build in recent Cython versions
simplify some code
optimise not so unlikely case of following single character tree nodes
Merge pull request #3 from msabramo/testing

Add support for tox (http://tox.testrun.org/) and Travis CI (http://travis-ci.org/)
add/update .hgignore and .gitignore files
Added tag acora-1.7 for changeset d7259380eafb
generalise cythonize() dummy
changelog
use Py_UCS4 instead of Py_UNICODE to store the set of branch characters
implement efficient Unicode parsing for PEP 393, fix some Unicode tests
mark Py3.[34] as supported
use setuptools if available to provide additional build metadata
whitespace