travis.yml: for Python 3.2, test against PyEnchant 1.6.8
travis.yml: for Python 3.2, test against PyEnchant 1.6.8

PyEnchant 1.6.8 is the last version that supports Python 3.2.
Later versions use the u''-strings, which require Python 3.3.

https://github.com/rfk/pyenchant/commit/f04c02ad37b61fc3016333f9248e13b00878aa3c

jwilk/mwic,jwilk/mwic