DNN-3862 All page properties should be copied when copying a page
DNN-3865 Page settings do not save start date

Modified the logic in page management so when a page is copied a clone of previous page is use as the base for the new one.
Removed minimum value for start date so date is preserved when editing take place after start date
Merge branch 'development' of https://github.com/dnnsoftware/Dnn.Platform into 72_development
DNN-3285 GroupPendingNotification urls do not work
DNN-3864 Not able to edit page with start date in the future

Add logic to process inactive pages (due to start / end date) the same way as disabled pages so they be opened in page settings.
DNN-4238 SQLModule missing localization options
DNN-21481 Add alternate link w/ "hreflang" to sitemap.aspx for multilingual websites
Merge pull request #40 from vmasanas/DNN-21481

DNN-4238 SQLModule missing localization options