- Add a check-rustfmt.sh script which checks if the right version of
rustfmt is installed.
- Run check-rustfmt.sh --install as an install step under travis_wait.
This is to work around the issue where cargo takes forever to build
rustfmt, causing Travis to terminate the build because it hasn't
produced any output for 10 minutes.
Move test-all.sh to the top level directory, and also run the parser tests from
this script.
Use a release build of cton-util to run the parser tests. As we accumulate many
tests in the tests directory tree, this will mean they can still be run quickly.
Point Travis config to the new test script.
