Initial version of go server
Fix compilation issues

# command-line-arguments
./go-server.go:19: unknown Page field 'Path' in struct literal
./go-server.go:25: cannot convert err (type error) to type string
Merge branch 'master' of github.com:parkr/go-static-server

* 'master' of github.com:parkr/go-static-server:
  Initial commit