Pass through --env CLI variables when running inventory commands

--env and -e env variables set on the CLI will now overwrite env set on the network level. This supports use cases where users want to access environment variables on the inventory call.

Experimental build for Windows; Network inventory improvement

• Run network's inventory only when actually used

Supfile.yml and SSH config improvements

• Supfile.yml is now supported
• Private SSH keys are read from all files matching ~/ssh/id_* wildcard
• --sshconfig=~/.ssh/config reads your SSH Config file
• Built with go 1.9

Resolve ENV VARs locally

Merge pull request #94 from pressly/resolve_vars

Resolve ENV VARs locally

Fix linux-386 build (govendor bug)

v0.4.2

Fix 386 build

Minor update: go1.7rc2 + latest crypto/ssh

v0.4.1

README: Bump version to v0.4

Sup v0.4 - Env Vars, Debug mode, Faster SSH multi-connect, Interrupt SSH sessions with ^C

Merge pull request #83 from pressly/debug

CLI: Implement --debug and --disable-prefix options

Supfile v0.3: Command local/once/serial, SSH bastion, Network inventory, CLI accepts multiple commands/targets

Fix run_once backward compatibility on v0.3

Linux / Darwin amd64 binaries

0.2.2

Bump to 0.2.2

Add `--only <regexp>` to filter hosts

Merge pull request #15 from pressly/only

Implement `--only regexp` cmd option to filter hosts