added test for annotation retrieval for anonymous individuals.
Updated IRI prefix caching to use thread local caches rather than
synchronized caches.
replaced calls to createIRI(String) with calls to createIRI(String,
String) when namespaces and fragments are easily identified.
Replaced ad hoc splitting of iris with XMLUtils prefix/suffix methods.
Removed TODOs, improved two unit tests
release notes updates for 3.4.4
[maven-release-plugin] prepare release owlapi-parent-3.4.4
Revert "[maven-release-plugin] prepare release owlapi-parent-3.4.4"

This reverts commit ddeb4b25c0c667bdefde5bae251292262c70929a.
[maven-release-plugin] prepare release owlapi-parent-3.4.4
[maven-release-plugin] rollback the release of owlapi-parent-3.4.4
git url changes on sourceforge
[maven-release-plugin] prepare release owlapi-parent-3.4.4
[maven-release-plugin] prepare for next development iteration
Bug #343 SWRL roundtrip in manchester syntax

Bug was fixed in release 3.4.4; enabled previously ignored test