fix creating new pipe with Plate and Heat
fix pipe edit bug
rewrite Get(Pipe) method
Merge branch 'merge_Kulish_Sidorov' of https://github.com/olga-jane/prizm into D_Sidorov_HeatForPipe
add heats into comboBox
update EditPipe, NewPipe, search criteria
combo box select have been implemented
cascade save/update and search pipe unit test have been resolved
move nUnit dependency from MainProject to UnitTests project
fix TestSaveRailcar
SearchRailcarCommandTest
Merge remote-tracking branch 'origin/master' into UnitTests
resolve Null Reference exception
add test files
Merge branch 'master' into D_Sidorov_HeatForPipe

Conflicts:
	src/Domain/Entity/Mill/Pipe.cs
	src/PrizmMainProject/PrizmModule.cs
	src/PrizmMainProject/Properties/licenses.licx
Merge pull request #202 from olga-jane/UnitTests

Unit tests
resolve merge conflict
delete number property for Heat and PurchaseOrder
resolve conflicts in TestMillPipeNewEdit and TestSaveRailcar
fillDb.sql have been normalized