Merge pull request sourcegraph#55 from sourcegraph/mrnugget/fix-non-e…

…xtended-file-header-parsing

Fix parsing of non-extended file headers and lines starting with --

remove protobuf types (sourcegraph#51)

They are unused, so we can keep the generated output. Additionally this remove
a dependency on pbtypes.Timestamp

Add basic support for binary diffs (sourcegraph#46)

Add support for special characters in file names (sourcegraph#45)

Merge pull request sourcegraph#32 from sourcegraph/update-readme-impo…

…rt-path

update import path in README

Merge pull request sourcegraph#22 from dmitris/gomod

add go.mod files, set GO111MODULE=on in Travis build