[ci] Use tabs in lime.sh.
[ci] Rename a variable in lime.sh.
[ci] Use tabs in gofmt.sh.
[ci] Make lime.sh clean up after itself.
[ci] Pull general functions into their own file.
[fmt] Don't print "<nil>" at the end of running fix.go.
[ci] Rename lime.sh to run_tests.sh.
[ci] Add scripts to check if any of the build scripts should have been run.
[ci] Switch to using the check scripts on travis.