SLOPE 1.2.0

Major Changes

• The default argument for threads in SLOPE() has been changed from NULL
  (half of available cores) to 1 (no multithreading). This is to avoid
  excessive CPU usage on systems with many cores. Users can still set
  threads = NULL to get the previous behavior, or set it to any positive
  integer to control the number of threads used.

Minor Changes

• The C++ routine can now be interrupted through R's usual interrupt mechanism
  (e.g., Ctrl+C in RStudio or R terminal).
• The citation information has been updated. Use citation("SLOPE") to see the
  correct way to cite the package.
• The y axis label for coefficients has changed from expression(hat(beta)) to
  "Coefficients" to avoid issues with rendering in some environments, where
  the hat symbol would be cropped.

Bug Fixes

• In the return object from SLOPE(), the coefficients_scaled field
  incorrectly contained unscaled coefficients, which also affected
  coef.SLOPE(). This has now been fixed.