Makefiles: Compute local object files on demand.

Don't compute them up front.
cmGlobalGenerator: Extract a ComputeTargetObjectDirectory interface.

Make it public for future external calls.
cmGeneratorTarget: Constify the AddObject API.

The storage is already const.
cmGeneratorTarget: Constify the AddExplicitObjectName API.

The storage is already const.
cmOSXBundleGenerator: Make MacOSXContentGeneratorType arg const.
cmGeneratorTarget: Make GetSourceDepends const.
Constify some APIs in generators.
cmGeneratorTarget: Constify cmSourceFile* in containers.

Some of them will be used with other APIs which require value_type
to be cmSourceFile const*.
cmLocalGenerator: Add ComputeObjectFilenames interface.

Implement it in the local generators and use it in the global
generators.
CMake*CompilerId: Fix patch level for Intel >= 14.0 (#14806)

According to the Intel release notes:

 http://software.intel.com/sites/default/files/l-compiler-release-update.pdf

the __INTEL_COMPILER_UPDATE predefined macro was introduced to hold the
third version component.

Reported-by: Dirk Ribbrock <dirk.ribbrock@mathematik.uni-dortmund.de>
Co-Author: Rolf Eike Beer <kde@opensource.sf-tec.de>
Merge branch 'fix-find_dependency-empty-version' into release
Merge branch 'intel-14-version' into release
Encoding: Provide option to configure CMake to use UTF-8 encoding.
Encoding: If configured, write Visual Studio project files as UTF-8.
cmGeneratorTarget: Don't store ObjectSources for object libraries.

Compute them on demand instead.
cmGlobalGenerator: Make ComputeTargetObjects non-virtual

Implement it in terms of the ComputeObjectFilenames virtual method
on the local generators.

Remove the reimplementation from the global generators which are
now all functionally identical.
CMake Nightly Date Stamp
QtDialog: Avoid linking to Qt4 WinMain when using Qt 5.

Override the QT_QTMAIN_LIBRARY cache variable with a regular
variable in the Qt 5 configuration. This avoids linking with the
Qt 4 version of the WinMain library.
Merge branch 'fix-Qt5-windows-build' into release
cmTarget: Restore <CONFIG>_LOCATION to CMP0026 OLD behavior (#14808)

Restore support for the undocumented <CONFIG>_LOCATION target property
removed by commit v3.0.0-rc1~175^2 (cmTarget: Remove support for
<CONFIG>_LOCATION property, 2013-12-30) as part of the CMP0026 OLD
behavior.