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
Merge pull request #1 from hardyoyo/LSO-688-new-discovery

[LSO#688] new discovery