Issue # 651
Merge branch 'master' of https://github.com/olga-jane/prizm into Protsenko_files
Merge branch 'master' of https://github.com/olga-jane/prizm into Protsenko_files
Fix merge
Merge branch 'master' of https://github.com/olga-jane/prizm into Protsenko_files
Fix merge
Issue 651
Issue 651
Merge branch 'master' of https://github.com/olga-jane/prizm into Protsenko_files
Issue 651: view and download commands
Issue 651 : saving files from parent form
Merge
Issue 651 : changed form reference on viewmodel
Fix misprint
Issue 651 - unit test
Issue 651 - fixed accidental mistake
Made view JointNewEditViewModel model private
Merge branch 'master' of https://github.com/olga-jane/prizm into Protsenko_files

Conflicts:
	src/PrizmMainProject/Forms/Spool/SaveSpoolComand.cs
	src/PrizmMainProject/Forms/Spool/SpoolViewModel.cs
Merge pull request #695 from olga-jane/Protsenko_files

Implement attaching files functionality