Added icon folder
Resolved the problem of an error when adding the import from a reference implementation (#36)
Completed implementation of selecting the reference implementation from a drop down list (#20)
Added the existing refernce implementation as an extension
Added extension point definition and the corrisponding helper class for #22
Validate the page after removing a row. This concludes #22.
Fixed part of the problem that is addressed in #22: Ensure, that when an item is removed from the table it is also removed from the backing model, therby inhibiting the generation of the removed artifact.
Refactoring Logging: Made logging method member methods
Remove plug-ins that are moved to the ui plug-in
Removed plug-ins that are part of the ui plug-in
