v0.2.4
Merge branch 'master' of https://github.com/arcturusannamalai/open-tamil
Merge branch 'master' of https://github.com/arcturusannamalai/open-tamil
enable building and testing on Python 2.6;
this requires trapping import error and falling back on the dict() base class of OrderedDict;
we tastefully disable failing tests on txt2unicode_tests.py (3 of them) on Python 2.6