Add SetAttributeValue methods that use tag paths.
Add missing exports for building DLLs.
Put the SetAttributeValue error message where it belongs.
Switch windows console to utf-8 in dicomdump.
Fix minor issues with the CMakeLists.txt.

This fixes some style issues, and also makes sure that all the required
dependencies will be "found" by the find_package(DICOM) command.
Do not export "find" commands for non-interface components.

Automatically running "find" for gdcm and other dependencies is
unnecessary, since projects that use vtk-dicom do not require their
header files.  Only VTK is required for the vtk-dicom interface.
Include VTK version in lib name for VTK 6+.

Starting in VTK 6, VTK libraries have the version number as part of
the file name, rather than just having it in the soname extension.
Also include VTK version in the PythonD libs.
Only add interface libs to LINK_INTERFACE_LIBRARIES.

Really, only the vtkCommonCore, vtkCommonDataModel, vtkIOImage are
interface libraries, because they contain the classes that the DICOM
classes derive from.  I have considered removing LINK_INTERFACE_LIBRARIES
altogether, but I'm not quite ready to go that far.
Change a cmake GREATER to VERSION_GREATER.
Overspecify the linking of all executables.

The goal is to make it possible to set the LINK_INTERFACE_LIBRARIES
to null.  CMake will automatically remove any duplicates.
A few minor fixes to the API documentation.
Bump the version number to 0.4.4.
Fix typo in cmake version number check.
Remove soname from python and java modules.
Add a python test.
Second try at fixing the version check.

Version 2.8.11.1 is greater than 2.8.11.
Use if(POLICY) to check whether policy exists.
Add a test for the Java wrappers.
Fix unused variable warning in TestDICOMSequence.