fix compile

did this compile with your version of go?

i got this running `go version go1.3.1 linux/amd64`
```
# github.com/gocircuit/escher/faculty
../faculty/focus.go:83: syntax error: unexpected range, expecting {
../faculty/focus.go:86: non-declaration statement outside function body
../faculty/focus.go:87: non-declaration statement outside function body
../faculty/focus.go:88: syntax error: unexpected }
```