fix for STANBOL-891: The hashCode() method now checks if optional fields are NULL

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1433874 13f79535-47bb-0310-9956-ffa450edef68
Use stable parent-3 release in all artifacts as parent, updated dev version of parent to 4-SNAPSHOT

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1434582 13f79535-47bb-0310-9956-ffa450edef68
STANBOL-878: AnalyzedTextWrtier no longer returns 0 for content length; added trace level debuggings of serialized spans to the AnalyzedTextSerializer

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1434943 13f79535-47bb-0310-9956-ffa450edef68
STANBOL-887, STANBOL-888, STANBOL-889 Updating the trunk to use latest release versions, updated released artifacts to new development version,  added some new helper scripts for future releases

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1435082 13f79535-47bb-0310-9956-ffa450edef68
STANBOL-887, STANBOL-888, STANBOL-889 Updating the trunk to use latest release versions

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1435145 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of git://git.apache.org/stanbol into trunk