Bump the buck version.
include keyword arg in the doc string example.

added more clarifications on exception classes
Merge branch 'master' of github.com:dlai0001/selenium
Merge branch 'master' of https://github.com/SeleniumHQ/selenium
added example documentation to ActionChains
change to a non-reserved word to get python IDE to stop complaining.
revert these 2 files.