cmdmod: rm redundant check that CWD is a directory

already performing that check on new line # 329
cmdmod: should be `if`, not `elif`; CWD validity check shouldn't be Windows-only
fix all pylint trailing-whitespace errors
add __func_alias__ for modules.alternatives.set()

avoid shadowing the built-in type
add more func aliases to avoid shadowing built-ins
ssh: rename file => filename, to not shadow the built-in
rm unused imports in git pillar
rm unused imports in states.keystone
honor `profile` arg to modjk.list_running_members()
rm **kwargs from modules.upstart.full_restart()
Merge pull request #7172 from hulu/keystone-unused-imports

rm unused imports in states.keystone
Merge pull request #7167 from hulu/trailing-whitespace-must-die

fix all pylint trailing-whitespace errors
Merge pull request #7165 from cvrebert/patch-2

cmdmod: rm redundant check that CWD is a directory
Merge pull request #7166 from cvrebert/patch-1

cmdmod: `if`, not `elif`; CWD validity check shouldn't be Windows-only
Merge pull request #7174 from hulu/upstart-full-restart-kwargs

rm **kwargs from modules.upstart.full_restart()
Merge pull request #7173 from cvrebert/patch-3

honor `profile` arg to modjk.list_running_members()
Merge pull request #7169 from hulu/func-aliases

add more func aliases to avoid shadowing built-ins
Merge pull request #7168 from hulu/alternatives-set-func-alias

add __func_alias__ for modules.alternatives.set()
Merge pull request #7171 from hulu/unused-git-pillar-imports

rm unused imports in git pillar
Merge pull request #7170 from hulu/filename-instead-of-file

ssh: rename file => filename, to not shadow the built-in