New feature: set different wrap width for different fonts
Thanks to @marcovirtual for suggesting and implementing the feature (#11).
In their own words,
This feature is very useful when using proportional width fonts, such as Georgia, Verdana or Roboto, which I usually do when writing prose.
As Sublime Text calculates the wrap length based on the widest characters (usually W), lines with proportional width fonts get too wide for optimal line length, so it's better to reduce wrap_length to something around ~40 when using proportional width fonts.