Change version number.

Merged in onelogin's 2.4.0 updates - this includes a couple security …

…fixes and a new dependency.

NameID tag includes SPNameQualifier, NameQualifier when NameID is sup…

…plied

Release 2.1.9

Release 2.1.8

Release 2.1.7

Update changelog.md

create changelog

Release 2.1.4 version

Release the 2.1.3 version