Upgrade to webmachine 1.10.1

These upgrades remove parameterized module code from both webmachine
and mochiweb and make chef_wm compatible with Erlang R16

Changes needed for the webmachine upgrade:

* Use ?BASE_ROUTES:route in chef_wm_clients and chef_wm_users instead
  of chef_wm_util:full_uri. The behavior of the wrq path functions
  changed slightly breaking the full_uri function. Using BASE_ROUTES
  module is more consistent with other resource modules anyhow.

* Remove full_uri/1 and set_uri_of_created_resource/1 from
  chef_wm_util as they are now unused.