Prep for release 4.4.6

Update version to 4.4.5, update changelog to include current date

update changelog for 4.4.4 release date

Prep for 4.4.3 release

Prep for release of 4.4.3 RC1

Merge branch 'maint', 4.4.2 release

fix notifications.c being executable

update release date in changelog

merge maint into master

updated changelog date