Fixed a typo where cmd would appear in linux.cson

Fixes #2251 again
Merge pull request #2278 from GeoffreyFrogeye/fixTypo-cmdInLinuxKeyMaps

Fixed a typo where cmd would appear in linux.cson
Upgrade to atom-shell@0.12.5
Upgrade to language-go@0.12.0
Add missing parens on indent guide check

Previously the indent guide was always showing on the whitespace only lines

Closes #2274
Prepare 0.97.0 release