Added destructor to dj.Connection to close the mym connection when objects are destroyed. Fixed a bug in dj.struct/tabulate that was affecting 1D tabulation.
fixed dangerous bug introduced in c7d4a0c and affecting releases 2.6.8 and 2.6.9.  Deletes were not restricted by the specified restrictors.
incremented version to 2.6.10
Merge branch 'future'