Merge pull request #331 from olga-jane/O_Morozova

Show purchaseOrder form
Merge pull request #333 from olga-jane/O_Morozova

Update translation of control type
add save/New command onto button at NewPipe form
set default PipeMillStatus as Produced
add isExecutable switch into purchaseOrder handler
Merge pull request #336 from olga-jane/sidorov_ButtonsNewPipeForm

Sidorov buttons onto new pipe form
Merge pull request #337 from olga-jane/master

Update O_Morozova