tag 1.6-release

retag 1.5 release

tag 1.4.1 release

add 1.4-release tag

tag 1.3.1 release

Merge branch '1.3' of github.com:commandprompt/pgmanage into 1.3

tag release commit for 1.2.1

217 advanced clipboard copy for datagrids (#563)

* adds advanced clipboard copy for datagrids refs: #217
* adds copy selected or all table data, handles case where column names "?column?"

tag release commit for 1.2

pin tempora and portend dependencies to prevent python-dateutil issues

refs: #495