Merge pull request #54 from Waghabond/master

Add py.typed marker for mypy to recognise this as a typed package

MANIFEST.in

@@ -2,4 +2,6 @@ include versioneer.py
 include redmail/_version.py
 recursive-include redmail/email/templates *.html
 recursive-include redmail/email/templates *.txt
-recursive-include redmail/test/test_files *
+recursive-include redmail/test/test_files *
+global-include *.pyi
+global-include *.typed

redmail/py.typed

@@ -0,0 +1 @@
+

setup.py

@@ -11,7 +11,9 @@ setup(
     author="Mikael Koli",
     author_email="koli.mikael@gmail.com",
     url="https://github.com/Miksus/red-mail.git",
+    package_data={package: ["py.typed", "*.pyi", "**/*.pyi"] for package in find_packages()},
     packages=find_packages(),
+    zip_safe=False,
     description="Email sending library",
     long_description=long_description,
     long_description_content_type="text/markdown",