if a song had no annotation, we saw a crash
initial version of a song manage

pretty uncool yet
- manual song id
- ugly ui
- …

but it works
Refined measure start
Refined default voices
Merge commit '8e4288abb5951d007a6f2495ccbb512cbd27f817' into glyph-for-rest

* commit '8e4288abb5951d007a6f2495ccbb512cbd27f817':
  if a song had no annotation, we saw a crash
updated musical.min.js to https://github.com/PencilCode/musical.js/commit/bfc1c0c
Now we have glyphs for rests at least in the raphael preview
Now we have glyphs also in pdf
Merge branch 'song-manager' into glyph-for-rest

* song-manager:
  initial version of a song manage
improved error messages in song manager
new song now has a template
Merge branch 'song-manager' into glyph-for-rest

* song-manager:
  improved error messages in song manager new song now has a template

Conflicts:
	.idea/workspace.xml