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.

  - Shared libs and executables with exports may now have
    explicit transitive link dependencies specified
  - Created LINK_INTERFACE_LIBRARIES and related properties
  - Exported targets get the interface libraries as their
    IMPORTED_LINK_LIBRARIES property.
  - The export() and install(EXPORT) commands now give
    an error when a linked target is not included since
    the user can change the interface libraries instead
    of adding the target.

ENH: fix for bug 3218 dependant projects are written out automatically if they are in the project.  Also fix bug 5829, remove hard coded CMAKE_CONFIGURATION_TYPES from vs 7 generator

ENH: Make add_custom_command interpret relative OUTPUT locations with respect to the build tre instead of the source tree.  This can greatly simplify user code since generating a file will not need to reference CMAKE_CURRENT_BINARY_DIR.  The new behavior is what users expect 99% of the time.

BUG: Add cmSourceFile::GetPropertyForUser to centralize the LOCATION property hack.  This fixes the LOCATION property when retrieved via the get_property command.

ENH: Enable use of link script whenever incremental archive construction rules are available.  Enable use of archive construction rules on MSYS.

ENH: Added build rule variables CMAKE_<LANG>_ARCHIVE_CREATE, CMAKE_<LANG>_ARCHIVE_APPEND, and CMAKE_<LANG>_ARCHIVE_FINISH to support creation of static archive libraries out of a large number of objects.  See bug #6284.

BUG: cmTarget instances should not be copied.  Removed pass-by-value arguments from cmLocalVisualStudio7Generator::WriteGroup and cmLocalVisualStudio6Generator::WriteGroup.  Updated cmTarget to make this easier to find.

ENH: Update cmInstallTargetGenerator to get the shared libraries linked by a target from cmComputeLinkInformation instead of duplicating the computation.

ENH: Add cmTarget::GetLinkInformation method to allow several places in the generators to share link information while only computing it once per configuration for a target.  Use it to simplify the chrpath feature.

ENH:  Allow QT4_WRAP_CPP to work with dir1/myobject.h dir2/myobject.h
      Fixes #5067.

  - Added EXACT option to request an exact version.
  - Enforce version using check provided by package.
  - Updated FindPackageTest to test versioning in config mode.

ENH:  Improve find for glib/gthread when Qt is configured to use it.
      Fixes #6220.