Merge pull request #10 from crawshaw/master

isolate tests from the current goroot/gopath
Merge pull request #11 from crawshaw/master

remove any empty import blocks
Add some of the gofmt flags back.

But still not cpuprofile, simplify, or rewrite.
Make it work for Go 1.1
Skip directories starting with numbers. (I had a bunch)
update README
Update README
fix typo in README
Merge pull request #13 from nikai3d/patch-1

fix typo in README
Fix issue 16: https://github.com/bradfitz/goimports/issues/16
set GOMAXPROCS to NumCPU