Issue #15: Add Solr indexing support for variants
Added first version of indexing service, together with a custom parser I have implemented.
Second version of the parser.
Issue #15: Add Solr indexing support for Variants.
Added a buffer for the variants in the VCF Service. The buffered variants are indexed automatically when the buffer fils.
Issue #15: Add Solr indexing support for Variants.
Added test classes for constructing custom solr queries.
[cleanup] Misc renaming and cleanup.
Merge branch 'new-parser' into feature-solr-backend