modified reference to compiled vexflow file (vexflow-free.js -> vexflow-min.js)
Re-indent according to VexFlow recommendations
Re-indenting test html (with TABs)
Removed global var 'canvas'; scope changed for var renderer. Some further minor re-indenting.
some formatting, including wrapping long lines
Prokofiev example xml, validates against latest .rng
removed mei\: from jquery
FIEXD:mei_staffdef2vex_keyspec returns undefined if no key.pname is present in staffdef, key.pname and key.mode moved to scoredef
Merge branch 'refactor' into noxmlns

e Please enter a commit message to explain why this merge is necessary,
removed all mei: NS references
test loaded from XML file (need to run Chrome with --allow-file-access-from-files to allow cross origin access)
removed namspaces from all tests; created Prokofiev-ns.xml for namespaced version
ns and nons test files to test prefixed and non-prefixed input
loading XML DOM with namespace specified; Prokofiev test with mixed prefix, e.i default AND prefixed namespce
nons html test file removed
M2VF-Test-ns.html test file removed
FIXED: bottom staff C4 appears as in treble clef, and stems are always up
M2VF-Test.html added - (got lost somehow)
loading XML DOM with namespace specified in M2VF-Test.html;
xml namespace prefix added to scoreDef element in Prokofiev test