fix a subtle bug: when the translation changes by replacing __builtin__._ with a new function, the default value for the titles etc in the scorewiz part types list did not change
no need to access _ via builtin
allow accessing either __builtin__ or builtins
make mofile run in py2 and 3
make mofile really working in py3
remove debug print
improve musicview in small sizes
upd chlog
simpler and just as effective
make oversampling threshold settable from options
Fix key names for QSettings
Merge branch 'master' of https://github.com/wbsoft/frescobaldi
make ly.music accessible from within docinfo frescobaldi, using caching
every Item has a position; the positions are sorted for m.iter_depth()

this way we can quickly locate an Item in the music tree from a cursor position
dont cache the music doc in the include node
add methods to find the node or time at a certain cursor position, and to find the length of music between two cursor positions
typo
Merge branch 'master' of https://github.com/wbsoft/frescobaldi
remove accidental translation
add format_fraction function