remove small-caps font variant causing an encoding bug in firefox.
add results from grunt test. further reduce font size in span
tighten kerning between 'V' and 'a' in 'variation'
feedback from DFP -- use em, move spans around uppercase letters
Merge pull request #532 from optimizely/ssmith/calculator-bug

Firefox Character encoding issue on the sample size calculator page
resolve merge conlfict in screens