Fix crash on unbounded records_in_range
Basic truncate support
Protect against invalid ::position() call
index_read with HA_READ_KEY_OR_NEXT against PK returned first value twice
Fixes for tracing
Delete returns found/not found
Fix range queries where the condition does not match the first row
Better support for date types
deletes with ordering would crash instead of report unsupported delete against non-pk table
Fix major regression with row packing for blob types
Change fixed-length CHAR handling
Fix regression in fixed-len binary support
insert / update would fail with pack-based row storage
mariadb still causing trouble with unpack
Allow building against separate PCRE libraries

Distros like centos have old versions of PCRE that prevent us from
compiling against mariadb
enable better tree debug support from mysql
Preliminary support for updating and deleting tables with no primary key
Improved tracing
Merge branch 'develop'