'Is Modified' for new records
PipeWeight
calculate pipe weight
Merge remote-tracking branch 'origin/ismodified_for_new_record' into O_Morozova

Conflicts:
	src/PrizmMainProject/Forms/PipeMill/NewEdit/MillPipeNewEditXtraForm.cs
	src/PrizmMainProject/Forms/Railcar/NewEdit/RailcarNewEditXtraForm.cs
fixed after conflict
Merge pull request #547 from olga-jane/master

Update O_Morozova
modify pipe weight calculation
update commit Pipe weight
update for comment
Merge pull request #548 from olga-jane/O_Morozova

Pipe weight