v1.5

#12 fixed ParseException on "stale" parameter when dealing with non RFC compliant server implementation #11
kudos to @sebphil

v1.4

#8: NPE workaround

v1.3

#8: NPE workaround

v1.2

#8 Default Digest Algorithm is MD5
Fixed NPE when QoP was not set

v1.1

[maven-release-plugin] copy for tag v1.1