Mentioning Test::Pcuke

... albeit briefly
Making it clearer that steps are written in low-level programming language
Mentioning recommended minimum perl code for step definition
Using DarkBlue for comment strings
Better formatting for reference to Ben Mabey's talk
Mentioning that scenario outline == scenario at present
Adding colour to more of the cucumber code
Comments are on their own lines in Cucumber
Adding examples of correct and incorrect comments
Added some more slide ideas
Corrected quoting in english speaking scenario
Regexps should be anchored at the start and the end

This isn't always necessary but is good practice