Add configuration check to libprocess for std::unique_ptr and std::move

Review:
Remove --without-cxx11 flag

C++11 is required now. Specifying this flag makes no change in the actual compilation of mesos.

Review: https://reviews.apache.org/r/26724
Delete framework data in TaskStatus to avoid OOM

There was a bug found that Spark use TaskStatus.data to transfer computed
result and mesos-master RES memory keeps increasing fast and finally will be
killed by OOM killer.

Review: https://reviews.apache.org/r/25184
Minor style fix from https://reviews.apache.org/r/25184/
Added --modules flag for Mesos slave.

Review: https://reviews.apache.org/r/26509