Use boolean args `keep` and `emrdata`
Closes issue #53 with dedicated unit test class `TestArgs`
Remove unused script: `exportForms.sh`
Improve documentation in `config-example/settings.ini`
Closes issue #63
Update version and CHANGELOG for v0.11.3
Merge branch 'release/0.11.3' into develop
Merge pull request #77 from indera/fix-63-docu-settings

Fix issue 63 - expand documentation in "settings.ini"
Merge pull request #76 from indera/fix-53-boolean-switches

Use boolean args `keep` and `emrdata`