added JavaScript implementation
- Tests available both in browser and node
Merge pull request #1 from dertseha/javascript

Added JavaScript implementation
clear deprecation warning when running with python 3
ignore created files
java version - use Deuce instead of Forty-all
Python version - use Deuce instead of Forty-All
Ruby version - replace Forty-All with Deuce
Forty-All should be Deuce. Making it the same for all languages.
Copy python code into perl dir, rename files, chomp trailing whitespace and comment out all contents.
Minimal change to test.pl so that it passes
Change Tennis.pm to be an actual module, test it can be used
Ignore .bak files (produced by perltidy when tidying up in-place)
Convert test scoring data to a Perl data structure
Switch to more robust plan specification
Convert the play_game helper to Perl
Convert test running loop, and stub in methods needed to loop over tests, but not actually execute them.
Comment out most tests, fix ->score response for only remaining one, actually run tests
Convert code for ->new
Convert ->won_points
Implement the equality scores