separate the various translation when importing from a qtranslate enabled WP site
WARNING: the translation extension pattern is hardcoded to slug.lang.ext
NOTE: it seems impossible to recover the translated titles since it's not in the Wordpress export xml (at least not in mine...)
improve the parsing of qtranslate language section + more tests
fix pep8 conformance
put default translation pattern in an easy to recover global variable
make conf.py.in template accept translations pattern value from Context
make sure the wordpress import with translations enforce the translation pattern
At the same time provide an option to change the translation pattern in conf.py
fix style for flake8
Merge pull request #1072 from tibonihoo/wp_qtranslate_and_custom_trans_pattern

Support for qtranslate and custom translation pattern in the Wordpress import plugin