fix filename of CUDA easyconfig with versionsuffix
Merge pull request #1270 from boegel/fix_CUDA_fn

fix filename of CUDA easyconfig with versionsuffix
fix easyconfig filenames, enhance unit test to check easyconfig filenames
Merge pull request #1271 from boegel/fix_easyconfig_filenames

fix easyconfig filenames, enhance unit test to check easyconfig filenames
bump version to 1.16.0.0 and update release notes
Merge pull request #1272 from boegel/eb1160

bump version to 1.16.0.0 and update release notes
bump version to 1.16.1.0dev