incremented version to 0.3.1 and added license field to package.json
incremented version to 0.3.1 and added license field to package.json

mpoegel/SemNExT-Visualizations,mpoegel/SemNExT-Visualizations,mpoegel/SemNExT-Visualizations,mpoegel/SemNExT-Visualizations,mpoegel/SemNExT-Visualizations