Moved library code from src/ back to top-level

While "src/" seems to be the recommended way, too many (linter/testing/...)
tools have problems with it.

.gitlab-ci.yml

@@ -3,9 +3,9 @@ linter:
   image: python:3.7
   script:
   - pip install pylint-gitlab
-  - python3 -m pylint --exit-zero --rcfile .pylintrc --output-format=pylint_gitlab.GitlabCodeClimateReporter src/ldapserver > codeclimate.json || true
-  - python3 -m pylint --exit-zero --rcfile .pylintrc --output-format=pylint_gitlab.GitlabPagesHtmlReporter src/ldapserver > pylint.html || true
-  - python3 -m pylint --rcfile .pylintrc --output-format=text src/ldapserver || true
+  - python3 -m pylint --exit-zero --rcfile .pylintrc --output-format=pylint_gitlab.GitlabCodeClimateReporter ldapserver > codeclimate.json || true
+  - python3 -m pylint --exit-zero --rcfile .pylintrc --output-format=pylint_gitlab.GitlabPagesHtmlReporter ldapserver > pylint.html || true
+  - python3 -m pylint --rcfile .pylintrc --output-format=text ldapserver || true
   artifacts:
     when: always
     paths:
@@ -19,7 +19,7 @@ test:
   image: python:3.7
   script:
   - pip install pytest coverage
-  - PYTHONPATH=src coverage run --include 'src/*.py' -m pytest --junitxml=report.xml
+  - coverage run --include '*.py' -m pytest --junitxml=report.xml
   - coverage report -m
   - coverage html
   - coverage xml

setup.py

@@ -20,7 +20,7 @@ setuptools.setup(
 		'Operating System :: OS Independent',
 		'Topic :: System :: Systems Administration :: Authentication/Directory :: LDAP',
 	],
-	package_dir={'': 'src'},
-	packages=setuptools.find_packages(where='src'),
+	package_dir={'': '.'},
+	packages=setuptools.find_packages(where='.'),
 	python_requires='>=3.9',
 )