- accounted for algebras of relations when generating OWLAxioms (impl)

Upgraded to mysql 5.1.36 and postgres 9.4-1204 (lib)
Upgraded to Jetty 9.3.3 (lib)
Upgraded OntoSim to pre-2.5 (lib)

- added support for non integral algebras
- added createRelation from BaseRelations
- added isIdRelation(), getIdRelation(), getEmptyRelation(), getNoInfoRelation()

- suppressed useless @overrides

- Upgraded some pom descriptions

- Upgraded to gson 2.4 (lib)
- Upgraded to lang3 3.4 (lib)
- Upgraded to lucene 5.3.1 (lib)

- fixed bugs in SPARQLRenderers on co-domain restrictions

- corrected Relation/PropertyId equals/hashCode

- BasicCell throws an exception if confidence out of bound
- cleaned up comments on extentsions in BasicCell

- modified parsers accordingly
- all implementation uses relationType to create cell relations
- genericised read/write and SWLCache for relations
- added interface for Disjunctive and Algebra relation
- added BitSet-based implementation of disjunctive and algebra relations
- developed A2 and A5 relation algebra
- extended AlgTest tests
- added V5 comment tag to anticipate API modification

- Added reverse construct tests

- fully implemented Linkkey managements in renderers
- all tests are passing