Add more features to the release notes
Merge pull request #5679 from UtahDave/develop

Add some Windows info to the release notes.
bump version to the RC number, 0.15.90
Bump man pages to 0.15.90
Normalize version numbers to strings in winrepo

This fixes #5682.
Merge pull request #5683 from terminalmage/issue5682

Normalize version numbers to strings in winrepo
Kill some prints
add tutorial to header for 0.16.0 release notes
Add additional documentation for `file.touch`
Merge pull request #5684 from basepi/touchdocs

Add additional documentation for `file.touch`
Bump Windows installer version number