typo fix
added services to retrieve data for a concept or release or module
refactor code
Added test cases for rest service. Interim checkin of service code
Merge branch 'master' of https://github.com/ft2000/snomed-content-service
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Updated code to support prametrize sparql query.
Merge pull request #6 from ft2000/master

Updated code to support parametrize sparql queries