Removing extraneous Swift information from Features
Removing extraneous Swift information from Features

Changes
* removing repeated information from Features page for Swift integration
* refactoring features.rst to 80 columns

Change-Id: Ib37e4476258cc4547d4a27847c89a9611bff05bc
Closes-Bug: #1376309

ekasitk/sahara,tellesnobrega/sahara,egafford/sahara,openstack/sahara,esikachev/sahara-backup,citrix-openstack-build/sahara,matips/iosr-2015,xme1226/sahara,matips/iosr-2015,citrix-openstack-build/sahara,bigfootproject/sahara,esikachev/sahara-backup,redhat-openstack/sahara,bigfootproject/sahara,zhangjunli177/sahara,esikachev/scenario,crobby/sahara,esikachev/scenario,tellesnobrega/sahara,henaras/sahara,zhangjunli177/sahara,zhujzhuo/Sahara,citrix-openstack-build/sahara,crobby/sahara,egafford/sahara,xme1226/sahara,bigfootproject/sahara,ekasitk/sahara,esikachev/scenario,henaras/sahara,esikachev/sahara-backup,zhujzhuo/Sahara,ekasitk/sahara,henaras/sahara,crobby/sahara,redhat-openstack/sahara,xme1226/sahara,zhangjunli177/sahara,openstack/sahara,zhujzhuo/Sahara,redhat-openstack/sahara,matips/iosr-2015