support ms ooxml

[kumakichi]

code comes from : file msooxml magic rule

Matchers is a map, and map iteration order is random, so maybe zip rule will be matched before msooxml rules, so i just simply add an array, to keep the same order as func register does

and, msooxml rules share the same check code, but i don't know how to merge them into one type, because type and checker seems to be binded when calling register

[h2non]

This looks promising. Can you add some test and real file fixtures?

[kumakichi]

OK, i just add 3 files, and modified MatchReader buffer size from 512 to 4096 to make test pass

but, 4096 bytes may not be enough for real files, according to file(1) magic for Microsoft Office XML

[h2non]

Thanks. Let's see if the CI build passes and we can merge things.

[kumakichi]

i just don't know why travis would fail, local test is ok

[kumakichi]

i see, this is an import path problem, if i change import path in code from gopkg.in/h2non/filetype.v1/types to github.com/h2non/filetype/types, then everything will be ok

seems v1 will use cc14fdc

[h2non]

Gotcha. Today I think using gopkg.in is a bit useless since we have godep and vgo solving the versioning consistency issue quite well. I think we can remote it.

[kumakichi]

so, maybe this PR is OK now?