lilypond-book: Remove custom package loading
AFAICT this feature is not documented and only used for the musicxml
testsuite. However the output of the formatter in the loaded module
book-musicxml-testsuite.py only differs by whitespace from the default.
(This also gets rid of the deprecation warning for module 'imp'.)
Diff:
Passes make. make test-baseline and a full make doc.
Patch on countdown for Feb 6th.
Patch counted down - please push.
pushed to
staging