Ansible-taskrunner

* Add support for pre_execution and post_execution directives [67b82c2](gitgithub.com:berttejeda/ansible-taskrunner/commit/67b82c220b4079fd0e687e18c4198c8c2d918d85)
* Honor option defaults [7ae2bd6](gitgithub.com:berttejeda/ansible-taskrunner/commit/7ae2bd6aeedae1e11b5e9544b5b8cd887de11248)
* Another adjustment to handling of boolean options [0eed168](gitgithub.com:berttejeda/ansible-taskrunner/commit/0eed168a77f9e239c28d9d734c222c4a8faa6e28)

* Fixed bug in handling of boolean options [171a099](gitgithub.com:berttejeda/ansible-taskrunner/commit/171a099f40e416acd1850874da9730da34931ddc)

* Support default value for options [61889c7](gitgithub.com:berttejeda/ansible-taskrunner/commit/61889c770b5704dd9882bee7154f27e068dcbc6a)
* Changed debug logging behavior [dde1546](gitgithub.com:berttejeda/ansible-taskrunner/commit/dde154676ad270a397907467c615a217f775b400)

* Refactor as per renaming of bertdotconfig dependency to btconfig [de98a2d](gitgithub.com:berttejeda/ansible-taskrunner/commit/de98a2d31860ad946f7858ab14fc228ccdbce1f8)
* Latest release notes [cf813ff](gitgithub.com:berttejeda/ansible-taskrunner/commit/cf813ff9c4c801e1e406e5c02074f73d203347f8)

* Improved formatting for ExtendedHelp epilog parser [77a74da](gitgithub.com:berttejeda/ansible-taskrunner/commit/77a74dab41940a1ee8008d0c9af55991d6a12efe)

* Adjusted ExtendedHelp epilog parser [cd0b0c9](gitgithub.com:berttejeda/ansible-taskrunner/commit/cd0b0c986b9cc8ca71157ca3d330cbe240c8e611)
* Renamed the '---raw' option to '---' [ca473eb](gitgithub.com:berttejeda/ansible-taskrunner/commit/ca473eb9bc41af0af02e7b1df9d108eb7d28ed57)