Log Message:
py-babel: updated to 2.6.0

Version 2.6.0

Possibly incompatible changes
These may be backward incompatible in some cases, as some more-or-less internal \ 
APIs have changed.
Please feel free to file issues if you bump into anything strange and we'll try \ 
to help!
* Numbers: Refactor decimal handling code and allow bypass of decimal quantization.
* Messages: allow processing files that are in locales unknown to Babel
* General: Drop support for EOL Python 2.6 and 3.3

Other changes
* CLDR: Use CLDR 33
* Lists: Add support for various list styles other than the default
* Messages: Add new PoFileError exception
* Times: Simplify Linux distro specific explicit timezone setting search

Bugfixes
* CLDR: avoid importing alt=narrow currency symbols
* CLDR: ignore non-Latin numbering systems
* Docs: Fix improper example for date formatting
* Tooling: Fix some deprecation warnings

Tooling & docs
* Add explicit signatures to some date autofunctions
* Include license file in the generated wheel package
* Python 3.6 invalid escape sequence deprecation fixes
* Test and document all supported Python versions
* Update copyright header years and authors file