Update dropdown and clear input fields when saving an algorithm.
Analyzing a File or Table Input also considers RelationalInputParameterAlgorithms.
Clean up edit form after saving a File Input
Fixed bug in finding row in table, when deleting an input.
Fix bug in converting a file input requirement into a file input value.
Merge pull request #228 from HPI-Information-Systems/DataSources

Data sources
Add Metanome logo and change color of headings.