script: Fix whitespace in bootstrap-flynn

Signed-off-by: Lewis Marshall <lewis@lmars.net>
script: Support a custom domain in bootstrap-flynn

Signed-off-by: Lewis Marshall <lewis@lmars.net>
Merge pull request #358 from flynn/script-override-controller-domain

Support a custom domain in bootstrap-flynn
controller, pkg, router: extracted http methods into httpclient