keyword arguments; and some cruft tidying
ability to write book out to XML file
pymptk: changed layout of "book" obj to be more pythonic
factor out book_append_atoms_from_mpbook()
pymptk: book obj, read values correctly from the C fields
pymptk: decompose() returns book - implemented but segfaulting
fix confusing naming: struct "book"->"BookObject"; member "book"->"mpbook"
fixed segfault, decompose() returns book
Merge branch 'newbook' into gitwork