fix timout typo
Fix salt provisioning validation

(mismatch between minion/master)
core: Assume box isn't metadata if > threshold [GH-3107]
providers/virtualbox: style nitpick
provisioners/ansible: request SSH info within provisoin [GH-3111]
Merge pull request #3126 from bbinet/fix-salt-provisioning

provisioners/salt: allow master key with no minion key
Merge pull request #3112 from Krazylee/fix-typo

core: fix timout typo
core: UI#ask with no echo works even if noecho not supported [GH-3119]