Help: Use a more-appropriate qthelp namespace and file name.

Use the namespace org.cmake instead of org.sphinx.cmake. Add the
version to the output file name.
Merge topic 'qthelp_names' into next

111bb67c Help: Use a more-appropriate qthelp namespace and file name.
Revert "Android: Build executables as PIE and with .so extension."

This reverts commit afe5170c9753e82e6a5f321ec9fde2d0c81710ef.
Merge topic 'Android-executables' into next

00912e2c Revert "Android: Build executables as PIE and with .so extension."