Date of pipe creation by default (from previous pipe)
update IsModified for pipe
Merge branch 'master' of https://github.com/olga-jane/prizm into Protsenko_fixes

Conflicts:
	src/PrizmMainProject/Forms/PipeMill/NewEdit/NewSavePipeCommand.cs
Merge pull request #736 from olga-jane/Protsenko_fixes

Date of pipe creation by default (from previous pipe)
Merge pull request #747 from olga-jane/Morozova_UI

update IsModified for pipe
Merge remote-tracking branch 'origin/master' into UnitTests