use single comment style in sample configuration
Merge pull request #9 from miku/minor/commentstyle

use single comment style in sample configuration
Added support for static extra fields definition in datasources.ini.
Added exception catching and retry logic to Solr requests.
Slightly tweaked deduplication in hope for a bit better performance.
NdlMarcRecord: use EbraryDynamic as location name instead of Ebrary to differentiate from possible existing Ebrary location.
Tweaked Mongo indexes.
Make the sample Mongo connection use unix sockets instead of TCP/IP as they can apparently be at least an order of magnitude faster.
Renormalization and re-deduplication needed: rewrote the deduplication id handling mechanism to account for records being deleted from a dedup set.
Added a method to mark all records from a source deleted.
Fixed Solr update with --all parameter.
Added dropping of the partially built M/R collection if a stage fails.
Fixed export to include any dedup id as intended and made sure the exported records don't include the XML prolog.
Updated copyright lines. Added missing author-letter fields to indexing.
[ALLI-1828] Added geospatial date ranges to NDL records.
Improved error messages and dump of erroneous XML into a separate temp file when OAI-PMH harvesting encounters an error.
Improved detection of thesis material types in NdlMarcRecord.
Mark a dedup record deleted if there are no remaining members.
Added publication date ranges to NdlDcRecord and NdlQdcRecord.
NdlMarcRecord: Fixed a couple of erroneous getFieldSubfield parameters.
[ALLI-1454] Include language codes in merged component parts.
[ALLI-1861] NdlEadRecord: Added detection of online material.
[ALLI-1862] NdlLidoRecord: Added detection of online material.