Removed WIP from 1.3.2.

Tagging Mesos 1.2.3

Updated 1.2.3 CHANGELOG prior to rc1 tagging.

Tagging Mesos 1.4.1

�[33mc844db9ac�[m Removed WIP from 1.4.1 release notes.
�[33mc19dfd5f2�[m Updated Mesos version to 1.4.1 in CMakeLists.txt.
�[33m5ec1a7bfc�[m Added MESOS-8090 to the 1.4.1 CHANGELOG.
�[33mb0448a4b5�[m Added MESOS-8169 to the 1.4.1 CHANGELOG.
�[33mb6022a112�[m Added a test for ExecutorID validation in ReregisterSlaveMessage.
�[33med1f00e35�[m Fixed incorrect validation that forced ExecutorID uniqueness.
�[33ma2b346b98�[m Added MESOS-8051 to the 1.4.1 CHANGELOG.
�[33mca03e9297�[m Ignored the tasks already being killed when killing the task group.
�[33m049bfecc0�[m Added MESOS-8080 to the 1.4.1 CHANGELOG.
�[33m1f2706a97�[m Fixed default executor handling of nested container status.
�[33mdf03a7313�[m Added MESOS-8135 to the 1.4.1 CHANGELOG.
�[33m2ee0f7689�[m Fixed an issue where task executor IDs are missing in the master.
�[33mc2c64c760�[m Added MESOS-8090 to the 1.4.1 CHANGELOG.
�[33m5bcc87522�[m Fixed missing `convertResourceFormat` cases in `master::updateSlave`.
�[33ma625e7f2b�[m Added MESOS-7921 to the 1.4.1 CHANGELOG.
�[33m8623cc7c9�[m Fixed a crash in ProcessManager::resume due to race.
�[33m43ca8825a�[m Fixed the clang complation problem for the executor tests.
�[33m26fe45fcd�[m Updated website for 1.4.0.
�[33m2d68c22c3�[m Added 1.4.0 blog post.
�[33m8613a7a8b�[m Added MESOS-7964 to 1.4.1 CHANGELOG.
�[33m27b835650�[m Prevent GC path removals from blocking other processes.
�[33mbf82953f1�[m Added `process::Executor::execute()`.
�[33mf82cd43dc�[m Added MESOS-7873 to the 1.4.1 CHANGELOG.
�[33ma7d8997cc�[m Added port mappings in `NetworkInfo` as part of `state` endpoints.
�[33mb625f9a0f�[m Bumped version to 1.4.1.
�[33ma64380f65�[m Added MESOS-7980 to 1.4.1 changelog.
�[33mace3b3fa6�[m Replaced xlocale.h with locale.h.
�[33m78985f93a�[m Added MESOS-796[89] to 1.4.1 changelog.
�[33m59a97d469�[m Ignored /proc/self/ns/pid_for_children when listing namespaces.
�[33mc2cf3f307�[m Ignored cgroups v2 hierarchy when parsing /proc/self/cgroups.

Removed WIP from 1.4.1 release notes.

Removed garbage collector.

The garbage collector had at least two bugs:

(1) If someone dispatched `manage()` twice in a row the process we're
    waiting for will get overwritten which can wreak havoc depending
    on when the calls to `link()` happen.

(2) The garbage collector was deleting after an exited event rather
    than actually doing a `wait()`.

The simpler implementation that this patch introduces is to just
delete the process after doing `ProcessManager::cleanup()`.

Review: https://reviews.apache.org/r/62053

Removed garbage collector.

The garbage collector had at least two bugs:

(1) If someone dispatched `manage()` twice in a row the process we're
    waiting for will get overwritten which can wreak havoc depending
    on when the calls to `link()` happen.

(2) The garbage collector was deleting after an exited event rather
    than actually doing a `wait()`.

The simpler implementation that this patch introduces is to just
delete the process after doing `ProcessManager::cleanup()`.

Review: https://reviews.apache.org/r/62053

Updated CHANGELOG for 1.4.0.

Updated CHANGELOG for 1.4.0-rc3.

Updated CHANGELOG.