fix search result uri building and empty array reduce warning

ui/js/lbry.js

@@ -517,7 +517,7 @@ lbry._updateClaimOwnershipCache = function(claimId) {
   lbry.getMyClaims((claimInfos) => {
     lbry._claimIdOwnershipCache[claimId] = !!claimInfos.reduce(function(match, claimInfo) {
       return match || claimInfo.claim_id == claimId;
-    });
+    }, false);
   });
 
 };

ui/js/lbryuri.js

@@ -140,9 +140,12 @@ lbryuri.build = function(uriObj, includeProto=true, allowExtraProps=false) {
   }
 
   if (contentName) {
-    if (!path) {
+    if (!name) {
+      name = contentName;
+    } else if (!path) {
       path = contentName;
-    } else if (path !== contentName) {
+    }
+    if (path && path !== contentName) {
       throw new Error('path and contentName do not match. Only one is required; most likely you wanted contentName.');
     }
   }

ui/js/page/discover.js

@@ -46,6 +46,7 @@ var SearchResults = React.createClass({
   render: function() {
     var rows = [],
         seenNames = {}; //fix this when the search API returns claim IDs
+
     for (let {name, claim, claim_id, channel_name, channel_id, txid, nout} of this.props.results) {
       const uri = lbryuri.build({
         channelName: channel_name,