LMDB-backed persistent quad-store for Attean

 AtteanX::Store::LMDB provides a persistent quad-store for Attean
 based on LMDB.
 .
 Attean is a Perl framework
 for working with RDF data and SPARQL queries.
 .
 The DBI is a database access module
 for the Perl programming language.
 It defines a set of methods, variables, and conventions
 that provide a consistent database interface,
 independent of the actual database being used.
 .
 A quad-store is a database container
 for named graphs of RDF linked data.
 .
 SPARQL is an RDF query language,
 that is, a semantic query language for databases,
 able to retrieve and manipulate data
 stored in Resource Description Framework format.
 .
 Resource Description Framework (RDF) is a standard model
 for data interchange on the Web.