Old syntax:
(=FOO ... FOO=) / (=FOO=)
New syntax:
<?foo ... foo?> / <?foo?> or:
Actually, the block type is case insensitive now, with lower-case being preferred. Same with %%variables%% that are interpolated.
There's a new bmlp.cfg option to keep the old syntax working until we change everything. I imagine we'll convert most everything automatically with a script.
