move tests from deep t/ext/path_class to shallow t
fix bug in spew
more filesystem.t cleanup
leave cached temp filehandle closed
add input/output tests
fix _utf8 function calls
fix coverage and spelling
more docs
test lines() with count
more tests
revise prereqs list
stringify argument to File::Copy
docs, comments, and tidy
updated meta files
more tests
updated META
fix up filesystem test
finished first documentation draft