DS-1552 adding luceneMatchVersion to oai and statistics SOLR configs

This property becomes mandatory in SOLR 4.0
DS-1581 Prevent double-up of restriction message
Merge pull request #238 from aschweer/DS-1581-restrictionmessage

DS-1581 Prevent double-up of restriction message
[DS-1489] SolrJ-3.3.0 dependency in OAI
DS-1581: fix last commit
Merge pull request #239 from KevinVdV/DS-1489

[DS-1489] SolrJ-3.3.0 dependency in OAI
Merge pull request #220 from bram-atmire/DS-1552

DS-1552 adding luceneMatchVersion to oai and statistics SOLR configs
adding .travis.yml to enable continuous integration testing provided by travis-ci.org