add Qt release/debug defines.

      Consolidate some strings.

      More responsive interrupting.  Prompt user if they try to close during
      configure, and allow them to close.

  - Build without rpaths
  - Place implementation libs in separate directories

  - HP-UX needs dependent library paths as -L options.
  - IRIX needs dependent library paths as -L options.
  - Sun needs dependent library paths as -L options.
  - FreeBSD needs dependent library paths in -rpath-link option.

BUG: Fix commit 1.41 of Tests/CMakeLists.txt to place fake target before --version flag instead of after.

  - Move runtime path ordering out of cmComputeLinkInformation
    into its own class cmOrderRuntimeDirectories.
  - Create an instance of cmOrderRuntimeDirectories for runtime
    path ordering and another instance for dependent library
    path ordering.
  - Replace CMAKE_DEPENDENT_SHARED_LIBRARY_MODE with explicit
    CMAKE_LINK_DEPENDENT_LIBRARY_FILES boolean.
  - Create CMAKE_LINK_DEPENDENT_LIBRARY_DIRS boolean.
  - Create variables to specify -rpath-link flags:
      CMAKE_SHARED_LIBRARY_RPATH_LINK_<LANG>_FLAG
      CMAKE_EXECUTABLE_RPATH_LINK_<LANG>_FLAG
  - Enable -rpath-link flag on Linux and QNX.
  - Documentation and error message updates

  - Split IMPORTED_LINK_LIBRARIES into two parts:
      IMPORTED_LINK_INTERFACE_LIBRARIES
      IMPORTED_LINK_DEPENDENT_LIBRARIES
  - Add CMAKE_DEPENDENT_SHARED_LIBRARY_MODE to select behavior
  - Set mode to LINK for Darwin (fixes universal binary problem)
  - Update ExportImport test to account for changes

STYLE: Remove references to std:: inside KWSys, even in comments.  This will allow a commit check to be added.

ENH: Add target property LINK_SEARCH_END_STATIC to help people building static binaries on some platforms.

BUG: Move decision to switch library paths found in implicit link directories to use -l options from cmFindLibraryCommand to cmComputeLinkInformation.  Existing projects may depend on find_library returning a full path.  This slightly weakens cmComputeLinkInformation but is necessary for compatibility.

BUG: Fixed previous commit in cmExportFileGenerator to separate libraries correctly in the import link list.