DS-2297: Add "IndexVersion" commandline script, and "ant update_solr_indexes" to auto-update our indexes as needed.
Minor spelling correction
Improved error handling. Ensure "ant help" also lists update_solr_indexes"
Refactor logic to work with Lucene API v4.10.2. Also ensure we don't download latest Lucene JAR, as it is already on our classpath.
Update to check Discovery & new Authority indexes in 'ant update_solr_indexes'. Also corrected auto-reindexing of Discovery in Flyway logic, as it needs to both overwrite existing index AND recreate the spellchecker index.
Bug fix to previous commit. Removing 'authority' index from Solr check
as it seems problematic if index is not initialized. Also ensure
Discovery reindex isn't triggered multiple times if an error occurs.
Merge pull request #749 from tdonohue/DS-2297

DS-2297: Auto upgrade Solr indexes
first commit of MOspace theme and basic configuration
moved mospace theme files to the correct path, added messages.xml overlay
ensuring group execute permissions are set on deploy
adding default value for assetstore.dir to build.properties, so Travis can still build this branch
avoiding infinite recursion by changing assetstore.dir to dspace.assetstore.dir in build.properties
trying to get the tests to run, this appears to work, needs further investigation, but out of time today
committing work in progress for initial discovery config, re #688
adding a simple continue line, so writing of a value is skipped if that value is null
tweaking bulkedit settings to allow expunge actions and more rows from the GUI (2000 instead of 20)
adding new ContentType facet to the home page, adding label for ContentType facet
re #688 add advisor, thesis semester, discipline, and thesis degree level facets
adding a new override for an undocumented messages.xml file, which is used for parts of discovery, and is in particular useful for providing labels for new custom facets; modified SolrServiceImpl.java to accomodate parsing the date values in dc.date.submitted, so we can have a functioning ThesisSemester facet; configured ThesisSemester facet to be a date facet
increased gui-item-limit to 10000, to match live MOspace