Change nginx config so that nested files are routed through index.html.
Changed some relative paths to absolute paths.

Conflicts:
	www/index.html
Corrected some more relative paths that need to become absolute paths.
Merge branch 'Routing-Fix' of github.com:curtislacy/omniwallet into Routing-Fix
Add a redirect for /wallet/ to /wallet/overview/, since that directory actually in the source tree.
Merge pull request #115 from curtislacy/Routing-Fix

nginx changes to support "refresh" when using angular routing.