fixed a typo
create alternates_list at the analysis

save staff number into staff_list
massage script to run without front-end
replaced massage.py with massage_mei.py to avoid name conflict with package

Added proper parameter parsing to massage_mei.py
Issue warnings only when option is set

fixed faulty ‘raise’
<space> considered as colored

(this is because <space> cannot have a color attribute)
FIXED: false warning message
transform_test can run on its own
extended test case to test variants against mRest on lemma
massage all files in directories
reinvent unit_test with spaces
utility to calculate effective time signature
work in progress

- debugging
- work on new dur->semibreve conversion
test case completed for executive time signature
fixed some typos
simplify syntax of attribute spec in get_descendents()

+ cover more cases in test
more detailed transformation unit tests
fixed indentation typo
fixed: meter.semibreves() doesn't convert to number
fixed: 'index out of range' if lemma <staff> is empty

- extended whole-measure test case to test this behaviour.
- commented out the last measure of this test case, because it’s
currently makes the test fail due to
https://github.com/DuChemin/MEIMassaging/issues/11