Added native SPARQL JSON query to SparqlClient and a task in Rakefile.
Added sparql route and query_json for SPARQL through requests.
Added simplistic test in home_spec.rb.
Simplified command line argument processing in sparql_client.rb.
Added tags to .gitignore.
First commit of mapping document.
Merge branch 'c05'

Conflicts:
	Rakefile
	src/sparql_client.rb
Fixed up messy merge.
Updated function in mapping.text.
Fixed various unit test failures.
Skip over VCF errors to be able to process whole file.
Add an 'other' email address.
Minor cleanup.
Cleaned up mapping code and documentation.
Added format to SPARQL client for Select.
Minor format fixes.
Loosened gem versions on libraries.
Updated various libraries to latest versions.
Refactored SELECT command to use JSON to generate the text output.
Fixed http 'Accept' header handling.
Updated web app SPARQL queries to new data model.
Tweaked fonts in stylesheet.