Simplify MANIFEST file

Add all files by default and only exclude what doesn't need to be included in
the package.

MANIFEST.in

@@ -1,34 +1,10 @@
 include README.rst
+include AUTHORS.txt
 include AGPL.txt
 include CC-BY-SA.txt
-include manage.py
-
-recursive-include wger/core/static *
-recursive-include wger/core/templates *
-recursive-include wger/core/fixtures *
-
-recursive-include wger/manager/static *
-recursive-include wger/manager/templates *
-recursive-include wger/manager/fixtures *
-
-recursive-include wger/exercises/templates *
-recursive-include wger/exercises/static *
-recursive-include wger/exercises/fixtures *
-
-recursive-include wger/nutrition/templates *
-recursive-include wger/nutrition/static *
-recursive-include wger/nutrition/fixtures *
-
-recursive-include wger/software/templates *
-recursive-include wger/software/static *
-
-recursive-include wger/weight/templates *
-recursive-include wger/weight/static *
-recursive-include wger/weight/fixtures *
-
-recursive-include wger/config/templates *
-recursive-include wger/config/fixtures *
-
-recursive-include wger/locale *.mo *.po
-recursive-include wger *.html
+include requirements.txt
 
+recursive-include wger *.*
+recursive-exclude wger *.pyc
+recursive-exclude wger *.swp
+recursive-exclude wger *~