add clef type selector to XML save function.
integrate chained vowels to one vowel.
expand score flag to 8-bit.
add new context: distance between consonant and vowel.
fix many bugs.



git-svn-id: svn://svn.code.sf.net/p/sinsy/code-0@2 ca151139-517c-4bf4-bc05-6adfb79111f3