Rename packages to MariaDB-columnstore-engine, MariaDB-columnstore-libs
and MariaDB-columnstore-platform.
Also add the "columnstore-" prefix the the components so that MariaDB's
packaging system understands then and add a line to include them in
MariaDB's packaging.
In addition
* Fix S3 building for dist source build
* Fix Debian 10 dependency issue
* Fix git handling for dist builds
* Add support for MariaDB's RPM building
* Use MariaDB's PCRE and readline
* Removes a few dead files
* Fix Boost noncopyable includes
If an error occurs in mysql_real_query() it fell through and tried to
get a result set anyway. This caused the MariaDB error message to be
forgotten and a generic one returned instead.
This fix returns the query error message and also uses the int error
code for generic errors instead of casting it to an unsigned int.
