Don't package up swap files (#29)

MANIFEST.in

@@ -25,4 +25,4 @@ include test-requirements.in
 
 include tox.ini .travis.yml appveyor.yml
 
-global-exclude *.py[cod] __pycache__ *.so *.dylib
+global-exclude *.py[cod] __pycache__ *.so *.dylib *.sw?

setup.py

@@ -27,7 +27,7 @@ def read(*names, **kwargs):
 
 setup(
     name='mar',
-    version='2.1.0',
+    version='2.1.1',
     license='MPL 2.0',
     description='Package for handling Mozilla Archive files.',
     long_description='%s\n%s' % (