docs(troubleshooting): added instructions on manually updating CoreOS
ref(troubleshooting): move coreos upgrade docs
style(docs): style cleanup
docs(installing_deis): import vagrant documentation
docs(upgrading): mention CoreOS minimum requirement
ref(deisctl): use docker exec
feat(client): optional drink of choice
style(tests): gofmt
fix(deisctl): handle "deisctl help <command>" consistently
Merge pull request #2396 from bacongobbler/import-vagrant-docs

docs(installing_deis): import vagrant documentation
fix(builder): force newline
chore(store): bump Ceph to "giant" release
fix(docs): fixup links
docs(installing_deis): fixed formatting issue
feat(provision-rackspace): added optional parameter to specify environment
docs(installing_deis): added reference to optional environment parameter
chore(provision-rackspace): bumped coreos image version
Merge pull request #2407 from bacongobbler/hotfix-vagrant-docs

fix(docs): fixup links
Merge pull request #2401 from mboersma/fix-deisctl-help

fix(deisctl): handle "deisctl help <command>" consistently
Merge pull request #2408 from Imdsm/patch-8

docs(installing_deis): fixed formatting issue