Sync up with oslo-incubator

be81d6b Cleanup unused log related code
e53fe85 strutils bool_from_string, allow specified default
12bcdb7 Remove vim header
12d3bbc Add method quote_plus in module py3kcompat.urlutils
afdbc0a Fix E501 in individual openstack projects

Oslo Version:
8dee4b6 Merge "remove extra newlines that eventlet seems to add"
Thu, 23 Jan 2014 14:26:42 +0530 (08:56 +0000)

Change-Id: I7348e797a4a78ec20dff77ebdbb41bb8c6068b34
Merge "Sync up with oslo-incubator"