Merge branch 'development' of https://github.com/InformationIntegrationGroup/Web-Karma into development
GUI improvements for Advanced semantic type options
minor change in service invocation part
bug fix
fix a code warning
Add capability in AddColumnCommand to be invoked with JSON input
loop bug
Merge branch 'development' of https://github.com/InformationIntegrationGroup/Web-Karma into development
bug fix

Undoing Semantic Type
minor changes in logs
remove print
Merge branch 'development' of https://github.com/InformationIntegrationGroup/Web-Karma into development
Adding the capability to generate RDF with literal data types
Removing .classpath and .project file from git
Adding .classpath and .project to gitignore
saving progress
Cloning the graph for undo and saving it
bug fix
Populate source now shows waiting sign and alignment after worksheet changes
Minor bug fix to avoid problems that could occur when the user presses Show Model button multiple times