Stylistic issues - running thread

[abhsarma]

• do not italise et al. ?
• "Battle & and Heer" probably should not use the \ampersand
• macros for each display condition
• names and colors for B-H and uncorrected strategies
• B-H or BH => B-H

[mcorrell]

Added a \etal macro for now that is unitalicized.