Some preliminary wrok on home_xdg stuff
some work on XDG stuff
tmp keyring in cache dir
almost ready to go here
merge with home_xdg
Add support for XDG_CONFIG_* and friends on Linux

Address keybase/keybase-issues#277
Address keybase/node-client#143
XDG improvements
Merge branch 'home_xdg_2' of github.com:keybase/node-client into home_xdg_2

Conflicts:
	CHANGELOG.md
	lib/env.js
	src/env.iced
More tweaking; seems to mainly work
need to upgrade