[cmake-developers] pause on new topics please

[Brad King]

Hi Folks,

Please do not merge any new topics to 'next' until further
notice.  It should just be for a day or two.

Ben has been working for a while on sweeping API changes
in the dev/string-apis topic to improve performance and
reduce the mix of std::string and char* APIs.  He has
patiently rebased on every topic that has been coming
through but is now ready to test it on the dashboards.

The topic will likely conflict with most other changes.
After it is clean I will merge it to master and lift the
freeze.  Then all active topics can be rebased on it to
resolve the conflicts.

Thanks,
-Brad