"All crops" link

src/main/resources/content/language.properties

@@ -102,6 +102,7 @@ userprofile.update.title=Update your profile
 user.page.list.title=Registered user accounts
 
 crop.croplist=Crop list
+crop.all-crops=All crops
 crop.page.profile.title={0} profile
 crop.taxonomy-rules=Taxonomic rules
 crop.view-descriptors=View crop descriptors...

src/main/webapp/WEB-INF/jsp/index.jsp

@@ -31,6 +31,7 @@
 	<c:if test="${cropList ne null and cropList.size() gt 0}">
           <div class="content-block" id="crop-list">
             <ul class="nav">
+            	<li><a class="show" href="<c:url value="/acn/" />"><spring:message code="crop.all-crops" /></a></li>
             <c:forEach items="${cropList}" var="crop" varStatus="status">
 					<li><a class="show" href="/c/${crop.shortName}/data"><c:out value="${crop.getName(pageContext.response.locale)}" /></a></li>
 				</c:forEach>