Dates correspond (roughly) to SSC Archive releases.

14feb2018
- command -grstyle set nogrid- has been added
- command -grstyle set noextend- has been added
- command -grstyle set plain- now has new options -nogrid- and -noextend-
- -grstyle set margins- now reorders the provided numbers when writing a
  scheme entry (because Stata interprets margins scheme entries as 
  "left right top bottom" instead of the usual "left right bottom top")

22dec2017
- new command grstyle set
- new command grstyle type
- command gstyle refresh discarded; settings are now refreshed automatically

18oct2017
- some minor bug fixes and small improvements

15oct2017
- grstyle released on SSC