Release 1.0.11

* version 1.0.11
* add Debian Stretch to CI/build/packaging matrices
* add Fedora 27 to CI/build/packaging matrices
* make statistic counters usable from Lua scripts
* fix the PostgreSQL driver to be compatible with CockroachDB
(GH-180)
* fix oltp_insert.lua to work correctly when both --tables and
--threads are greater than 1 (GH-178)
* fix FreeBSD builds by adding -rdynamic to the default linker
flags (GH-174)
* minor documentation updates