Beginning with the 19.06 release of the Cray Programming Environment, the default linking mode on XC Cray systems is dynamic instead of static. This updates the CrayPrgEnv compiler wrappers to detect the PE version being used and behave accordingly.
Add section headers similar to the 3.14 release notes and move each individual bullet into an appropriate section. Revise a few bullets.
Run the `Utilities/Release/consolidate-relnotes.bash` script to move notes from `Help/release/dev/*` into `Help/release/3.15.rst`.
Chuck Atkins