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* Merge pull request 55 from ivanlemeshev/master
* Added ftypmp4v to MP4 matcher
* Merge pull request 54 from aofei/master
* chore: add support for Go modules
* feat: add support for AAC (audio/aac)
* Merge pull request 53 from lynxbyorion/check-for-docoments
* Added checks for documents.
* Merge pull request 51 from eriken/master
* fixed bad mime and import paths
* Merge pull request 50 from eriken/jpeg2000_support
* fix import paths
* jpeg2000 support
* Merge pull request 47 from Ma124/master
* Merge pull request 49 from amoore614/master
* more robust check for .mov files
* bugfix: reverse order of matcher key list so user registered matchers appear first
* bugfix: store ptr to MatcherKeys in case user registered matchers are used.
* update comment
* Bump buffer size to 8K to allow for more custom file matching
* refactor(readme): update package import path
* Merge pull request 48 from kumakichi/support_msooxml
* do not use v1
* ok, master already changed travis
* add fixtures, but MatchReader may not work for some msooxml files, 4096 bytes maybe not enough
* support ms ooxml, 40
* Fixed misspells
* fix(travis): use string notation for matrix items
* Merge pull request 42 from bruth/patch-2
* refactor(travis): remove Go 1.6, add Go 1.10
* Change maximum bytes required for detection
* Merge pull request 36 from yiiTT/patch-1
* Add MP4 dash and additional ISO formats
* Merge pull request 34 from RangelReale/fix-mp4-case
* Merge pull request 32 from yiiTT/fix-m4v
* Fixed mp4 detection case-sensitivity according to http://www.ftyps.com/
* Fix M4v matcher