Added source type to worksheet metadata
Consolidated column name hnode translation
Added initial formatter structure for rml column/object/tag names
Updates to xml import to prepend @ to attribute column name
Initial support for JSONPath
Don't output literal type if there isn't one for R2RML
Handle [*] at beginning of JSONPath
Added support for searching for HNodes by column name
Remove extra quotes from R2RML templates
R2RMLJenaModelParser properly parses triple maps with no predicates, but a valid template

Now generates CLASS_INSTANCE_LINK predicate as long as a
ColumnTemplateTerm is present so it gets processed by the
KR2RMLWorksheetRDFGenerator
Initial support for generating R2RML templates by parsing PythonTransformations

Added PythonTransformationAsURITokenizer plus tokens
Added PythonTransformationAsURIValidator
Added PythonTransformationToTemplateTermSetBuilder
Merge branch 'development' into rml_implementation
For KR2RML models, added check for version and worksheet history r2rml compatibility
Merge branch 'master' into development
remove two warnings
Merge pull request #53 from areshand/development

remove two warnings
temporary fix to service invocation command
bug fix in exporting graphs to graphviz
Update for classpathScope for OfflineRDFGenerator
Clean up of progress in preparation of merging back