Remove aliases?

[muraiki]

Aliases shouldn't be defined in the parser, as it would encourage fragmentation of the file format. One user might like ison while another likes +1 while another likes a; if these three users make the same file they will be incompatible.

Instead, aliases should be a feature of a byzantine chant text editor program, not the parser itself. That program would convert the shorthand aliases to the proper forms, such as ison.