Fix warnings in Win7 test projects

[Samuel Jackson]

The windows 7 build is showing the following warnings for some of the test projects:

defaultlib 'MSVCRT' conflicts with use of other libs;
 use /NODEFAULTLIB:library [C:\jenkins\workspace\is_clean_win7_develop_db\build\Framework\Geometry\test\GeometryTest.vcxproj]

[Martyn Gigg]

This appears to be occur when linking to gmock/gtest. Those projects are linked to the release runtime in debug.

[Martyn Gigg]

Kill /NODEFAULTLIB warnings when compiling tests under MSVC in debug

They were caused by gtest/gmock statically linking to the release runtime in debug mode. The fix has required patching gmock/CMakeLists & gtest/CMakeLists to remove hard-coded /MD switch. This patch has already been incorporated in to gmock 1.7.0 but we cannot upgrade since this does not compile with the std=c++0x flag on gcc. Refs #8408

Changeset: 92a54f5d7435ede38840afcbae82c2a3575c4559

[Martyn Gigg]

Branch: bugfix/8408_fix_msvc_linker_warnings

Tester: Look ​here. There were eight warnings about linker errors that mentioned the phrase /NODEFAULTLIB. These should now be gone. Similary building in debug a local copy on Windows should not produce this warning.

[Martyn Gigg]

Make sure gtest doesn't overwrite flags that are already set.

Refs #8408

Changeset: 178a42ee1e40edd7d8f3921293cec0c467d1dee4

[Michael Reuter]

Merge remote-tracking branch 'origin/bugfix/8408_fix_msvc_linker_warnings'

Full changeset: ​0696ddc799f469896cfd84feaea4f3f27511c6a5

[Stuart Campbell]

This ticket has been transferred to github issue ​9253