Fix two more fail -> panics
Fix the build
Update README.md
Fix up the deploy script

Actually generate the book, fixing the deploy script, as well as only
deploy when we merge, rather than on pull requests.
Fix typo
deploy correctly

Thanks @joshk :heart:

https://github.com/rust-lang/rust-by-example/issues/292#issuecomment-66208284
the formatting type `t` is not in rustc 0.13.0-nightly version

for rustc 0.13.0-nightly (8bca470c5 2014-12-08 00:12:30 +0000) version, the formatting type `t` is not here, and will print error like this:
10:74 error: unknown format trait `t`
Change some URLs from japaric to rust-lang
Set proper `make serve` command
Change from [link](example.com) to [link][link]

fixup! Change from [link](example.com) to [link][link]
Make the `make` command display correctly