modified currency regex & styles

the existing currency check was always failing for me, I think the new
one is working, might need some testing. Added stubs for other filters
on the listings search, added a “share” button to listings on the my
bids page(not functional yet)
added bid notification icon

added icon to notifications, intend to have different icons for
different notification types. Also fixed green header bar collapsing on
login page.
minor style changes to notifications
Missing file

Won’t let me commit without this file evidently, looks like it’s
already set to 0.8.1.3 in the repo anyway.
Merge branch 'master' of https://github.com/busheldirect/initial

Conflicts:
	client/main.js
Merge branch 'master' of https://github.com/busheldirect/initial