Add initial images for ANU, McGill, Rice, Toronto.

Still waiting on transparent logos.

lms/templates/university_profile/anux.html

@@ -4,7 +4,7 @@
 <%block name="title"><title>ANUx</title></%block>
 
 <%block name="university_header">
-  <header class="search" style="background: url('/static/images/university/anu/anu-banner.jpg')">
+  <header class="search" style="background: url('/static/images/university/anu/anu-cover.jpg')">
     <div class="inner-wrapper university-search">
       <hgroup>
         <div class="logo">

lms/templates/university_profile/mcgillx.html

@@ -4,7 +4,7 @@
 <%block name="title"><title>McGillX</title></%block>
 
 <%block name="university_header">
-  <header class="search" style="background: url('/static/images/university/mcgill/mcgill-fall-campus.jpg')">
+  <header class="search" style="background: url('/static/images/university/mcgill/mcgill-cover.jpg')">
     <div class="inner-wrapper university-search">
       <hgroup>
         <div class="logo">

lms/templates/university_profile/ricex.html

@@ -4,7 +4,7 @@
 <%block name="title"><title>RiceX</title></%block>
 
 <%block name="university_header">
-  <header class="search" style="background: url('/static/images/university/rice/rice-banner-owls.jpg')">
+  <header class="search" style="background: url('/static/images/university/rice/rice-cover.jpg')">
     <div class="inner-wrapper university-search">
       <hgroup>
         <div class="logo">

lms/templates/university_profile/torontox.html

@@ -4,7 +4,7 @@
 <%block name="title"><title>TorontoX</title></%block>
 
 <%block name="university_header">
-  <header class="search" style="background: url('/static/images/university/toronto/toronto-campus.jpg')">
+  <header class="search" style="background: url('/static/images/university/toronto/toronto-cover.jpg')">
     <div class="inner-wrapper university-search">
       <hgroup>
         <div class="logo">