[lmi] Compression of MST files

[Greg Chicares]

Vadim--The MST files (unlike their XSLT cousins) are readable
enough that an end user might be tempted to modify them in an
inappropriate way, if we distribute them in source form. If we
were to compress each MST file with xz and distribute only the
compressed copies, how easy would it be to use liblzma (which
we already distribute) inside lmi to decompress them on the
fly (into RAM, not onto disk)?