Fix vagrant rsync

The git repository contains some blind symlink that cause issues when syncing
with default vagrant rsync setting.

E.g.
Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/testdata/fs/g
is pointing to non-existing path, causing vagrant to fail on:

    rsync error: some files/attrs were not transferred
Rename haproxy.HaproxyRouter to haproxy.Router
Added godoc for multimapper constant
Fixed if block that ends with a return in serialization test
Added missing godoc
Added missing godoc and obsolete notice
Fixed missing godoc in cmd/infra package
Fixed godoc for origin/auth package
Remove else from env() func
Fixed godoc in server/start
NoDefaultIP should be ErrNoDefaultIP
webhookUrl should be webhookURL
Ascii should be ASCII
Get rid of else from an if block when it contains return
Replace errors.New(fmt.Sprintf(...)) with fmt.Errorf(...)
Use 'template.Processor' instead of 'template.TemplateProcessor'
Replace ALL_CAPS in basicauth_test with camel case
Fix variable names (Url -> URL, client_id -> clientID, etc...)
Rename grant.GrantFormRenderer to grant.FormRenderer
getUrl -> getURL