* cmake/modules/ECMSetupVersion.cmake,
cmake/modules/ECMVersionHeader.h.in: New.
* cmake/modules/G10CMakeSettings.cmake: Enable versioned DLLs for MinGW
builds.
* src/CMakeLists.txt: Remove unused variables. Use ecm_setup_version
instead of configure_file to generate gpgmepp_version.h and
GpgmeppConfigVersion.cmake. Use configure_package_config_file instead
of configure_file to generate the GpgmeppConfig.cmake files. Generate
the exported GpgmeppTargets*.cmake files and install them. Install the
Find modules.
* src/GpgmeppConfig.cmake.in: New.
* src/GpgmeppConfig-msvc.cmake.in.in, src/GpgmeppConfig-w32.cmake.in.in,
src/GpgmeppConfig.cmake.in.in, src/GpgmeppConfigVersion.cmake.in,
src/gpgmepp_version.h.in: Remove.