CMake Nightly Date Stamp
Teach try_compile COPY_FILE to look for IOS app bundles.

The COPY_FILE option on try_compile never looked for IOS application
bundles. This caused it to fail if the CMAKE_MACOSX_BUNDLE was set.
Merge topic 'fix_search_path_ios_trycompile' into next

55a885da Teach try_compile COPY_FILE to look for IOS app bundles.
069090e3 CMake Nightly Date Stamp