Fix escaping of string literals in struct2cond
Merge branch 'master' of https://github.com/datajoint/datajoint-matlab
Decreasing version number on master. Previous 2.6.8 was released in a buggy state.wq
Support logical arrays in blob columns without data type conversion

Based on the resolution of mym issue 3 and thus requires mym version 2.6.8+
Merge branch 'future'
incremented version to 2.6.9
Merge branch 'future'
made dj.BaseRelvar/del more efficient by not deleting from tables when nothing is to be deleted.