[Click] PRE-ANNOUNCE: Click 1.9.0

[Eddie Kohler]

Hi all,

Click 2.0 will be released July 16.

Compared to Click 1.8.0, the major features will include:

- Language changes, including require(library) and element groups.
- Extensive multithread improvements.
- Introduce TokenBucket.
- Patchless improvements.
- Core performance improvements.
- New Args configuration string parsing.

Github pull requests welcome in between now and July 16.  Testing would be 
absolutely wonderful: if you haven't updated in a while, please do so and let 
us know about any problems you experience.  I'll be going through outstanding 
mailing list items between now and then, but feel free to speak up and repeat 
yourself.

Best,
Eddie