10.0.4 - make release notes

We should compile a list of new features that are released in 10.0.4

(normally, the list can be auto-compiled, but in this case, we need to look at what has been merged from MySQL 5.6)

Implemented for 10.0:
MDEV-4438 - Spider storage engine
MDEV-4568 - Port Percona response time distribution as audit plugin
MDEV-4594 - CREATE SERVER crashes embedded
MDEV-4702 - Reduce usage of LOCK_open

Merged for 5.6:
MDEV-330 - merge microsecond feature from mysql-5.6. MariaDB now can open
tables created in MySQL-5.6 that have columns of types TIME(N), DATETIME(N) and TIMESATMP(N).
Previously, an attempt to open such a table in MariaDB would return an error.
MDEV-3838 - Standard SQL temporal literals are recognized by MySQL 5.6 but ignored by MariaDB 10.0
MDEV-4058 - Merge the host_cache P_S table
MDEV-4710 - Merge Performance Schema test cases from MySQL 5.6.10
WL#5185 Remove deprecated 5.1 features

(so far includes lists from svoj, bar, psergey, timour)