Integrate glob matching options more fully with the file-type filters

[gvansickle]

The glob-style file include/exclude options added in #84 are fairly well integrated and definitely usable. However, there are corner-cases in which they do not behave as expected (see for example the expected-fail --include/--exclude=GLOB tests in type_inclusion.at). Resolve these, probably by better integrating the glob logic with the file-type mechanism. Exactly how TBD.