You could compile into a single exe. But that requires commercial license.
Most people just combine the exe with Qt dll's.
These can be found here, note that *.d.dll are for debug.
C:\Qt\Qt5.4.1\5.4\mingw491_32\bin For my version at least.
@Kofr I am stuck into a similar problem, Can you by any chance provide the working code where the TreeView(with parent-child relation) is editable too? Considering that this post was really long back, but it will be a huge help if the code (completed with the qml and C++ too) is provided! Thanks in advance!