metadata database, indexer and search tool - commandline tools

 Included utilities for Tracker:
  * tracker-import: import data using Turtle files
  * tracker-info: get information about files
  * tracker-search: this perfoms a google like search using SEARCHTERM to
    retrieve all matching files where SEARCHTERM appears in any searchable
    metadata
  * tracker-sparql: query or update Tracker database using SPARQL
  * tracker-stats: retrieve some statistics
  * tracker-tag: tool to manage tags on files
 .
 Tracker is an advanced framework for first class objects with associated
 metadata and tags. It provides a one stop solution for all metadata, tags,
 shared object databases, search tools and indexing.