Merge pull request #203 from mickadoo/add-testing-documentation

docs/basics/planning.md

docs/testing.md

docs/testing/continuous-integration.md

docs/testing/javascript.md

docs/testing/phpunit.md

docs/testing/selinium.md

docs/testing/setup.md

docs/testing/upgrades.md

docs/tools/buildkit.md

docs/tools/civilint.md

docs/tools/phpstorm.md

mkdocs.yml

redirects/wiki-crm.txt

redirects/wiki-crmdoc.txt