www/py-selenium: 2.48.0 -> 2.51.1

Selenium 2.51.1

• correcting bundling issue missing README.rst file

Selenium 2.51.0

• Firefox updates (see java changelog)

Selenium 2.50.1

• Fixing error message handling. Fixes issue #1497
• Fixing error message handling. Fixes issue #1507
• Update webelement to handle W3C commands for size/location and rect
• rewrite click scrolling tests to match the Java ones

Selenium 2.50.0

• handle potential URLError from sending shutdown, set self.process to None after it's already been quit
• Add support for submit() with W3C compliant endpoint

Selenium 2.49.1

• Ensure you can close stream before attempting to close it.
• message response may cause json loads ValueError when it's not actually json and just a string (like the message that occurs when firefox driver thinks another element will receive the click)
• Cleanup some error handling when sniffing what protocol you are speaking

Selenium 2.49.0

• Have Firefox service write to a file instead of PIPE
• Added Firefox path variable for string placeholder
• Update README to show Python 3.2+
• refactoring all the service classes to use a common one.
• Add Firefox specific command to switch context between Browser content and Browser chrome
• updating files after go copyright:update
• Use specificationLevel to know that we are speaking GeckoDriver
• Bug fixes: #1294, #1186

PR: 206992
Submitted by: douglas@douglasthrift.net (maintainer)