Merge pull request #4 from mhurst4186/master

opts Hash to OpenStruct & fixed-point assemble/Include
simplify fixed-point include/insert loop; add not-nil check to f.p. loops
conf.norm -> conf.normalize now that namespace issues are improved
comma is *optional* in F90:R529: update grammar & add tests
code + tests removing tabs from leading fixed-form whitespace (intel scheme)
add detabify tests
in-progress support for F90:1002-1017 grammar
Merge remote-tracking branch 'upstream/master'
finished support for R1002-1017 and tests