Make "ReSTful service" consistent
Make "ReSTful service" consistent

Most parts contain "ReSTful HTTP service" instead of "ReSTful web
service". So this patch changes "ReSTful web service" for the word
consistency.

Partially implements blueprint complete-todo-in-api-concept-doc

Change-Id: I642ae649adad8f886bdb6bce979a1dd7d2430a80

Juniper/nova,mikalstill/nova,jianghuaw/nova,jianghuaw/nova,jianghuaw/nova,rajalokan/nova,dims/nova,rahulunair/nova,alaski/nova,rahulunair/nova,BeyondTheClouds/nova,zhimin711/nova,apporc/nova,BeyondTheClouds/nova,rajalokan/nova,NeCTAR-RC/nova,CEG-FYP-OpenStack/scheduler,NeCTAR-RC/nova,cernops/nova,dims/nova,bigswitch/nova,zhimin711/nova,klmitch/nova,hanlind/nova,alaski/nova,klmitch/nova,cyx1231st/nova,vmturbo/nova,klmitch/nova,jianghuaw/nova,Juniper/nova,cyx1231st/nova,cernops/nova,mahak/nova,gooddata/openstack-nova,vmturbo/nova,openstack/nova,cloudbase/nova,Juniper/nova,mikalstill/nova,mahak/nova,gooddata/openstack-nova,cloudbase/nova,hanlind/nova,BeyondTheClouds/nova,openstack/nova,vmturbo/nova,cernops/nova,apporc/nova,mikalstill/nova,CEG-FYP-OpenStack/scheduler,openstack/nova,rajalokan/nova,sebrandon1/nova,klmitch/nova,hanlind/nova,phenoxim/nova,Juniper/nova,cloudbase/nova,mahak/nova,vmturbo/nova,sebrandon1/nova,gooddata/openstack-nova,rahulunair/nova,gooddata/openstack-nova,rajalokan/nova,sebrandon1/nova,bigswitch/nova,phenoxim/nova