Merge branch 'nifty_import_test' into 'master'

added a test that tests whether it is possible to simply import all of nifties methods

See merge request !106

test/test_init.py

+from nifty import *
+
+#This tests if it is possible to import all of nifties methods. Experience shows this is not always possible.
+pass
\ No newline at end of file