Update to mdbook 0.2

[mark-i-m]

fixes #172, fixes #109

Dropped travis caches...

Currently it looks like linkcheck is passing despite broken links?

r? @Michael-F-Bryan

[Michael-F-Bryan]

@mark-i-m v0.2.1 is on crates.io so it looks like this PR should be unblocked now. Don't forget that you can enable checking remote links or going outside the book root via the config file.

[Michael-F-Bryan]

@mark-i-m, it looks like the crates.io link is still getting a 404 and making travis fail. This is probably related to rust-lang/crates.io#788, but should I add some sort of exclude option to mdbook-linkcheck?

[mark-i-m]

@Michael-F-Bryan Yes, a whitelist would be really useful. For now, I can just disable external link checking (unfortunately, that would also disabled checking links to compiler rustdocs), unless it would be a fast change.

[Michael-F-Bryan]

@mark-i-m I've uploaded a new release of mdbook-linkcheck. You should be able to skip false-positive URLs by adding a list of excluded URL patterns to your book.toml.

[output.linkcheck]
follow-web-links = true
exclude = [ "crates\\.io" ]

[mark-i-m]

🎉 🎉 🎉 Finally!