0.4 dev

Hi,

I just noticed you were trying to upgrade the plugin to Lucene/Solr 4.5.1.
I made a release today of Lucene-SKOS v0.4 which supports up to version 4.2.1, (tagged) from branch 0.3-dev.
Then I merged 0.3-dev into master (the master branch is our stable branch).

I branched to 0.4-dev for development and updated to support 4.5.1.
If you're interested you can test this branch.