Added refresh link to all home navigation types

This adds a refresh link to all homePager.jsp browse methods in a
consistent place, so that users can easily refresh the proper frame
without causing a whole page refresh that would interrupt the web
player.
This is a follow-on to #1339 which removed the auto-refresh feature.
A side effect of this cleanup was to change all spacing between sets
of elements to a standard 2em to the right which made the layout
less convoluted.

airsonic-main/src/main/webapp/WEB-INF/jsp/home.jsp

@@ -16,6 +16,10 @@
             </c:if>
         }
 
+        function refresh() {
+            top.main.location.href = top.main.location.href;
+        }
+
         function playShuffle() {
             top.playQueue.onPlayShuffle('${model.listType}', ${model.listOffset}, ${model.listSize}, '${model.genre}', '${model.decade}')
         }

airsonic-main/src/main/webapp/WEB-INF/jsp/homePager.jsp

@@ -12,16 +12,8 @@
                 </div>
             </td>
         </c:if>
-        <c:choose>
-            <c:when test="${model.listType eq 'random'}">
-                <td style="padding-left: 2em;">
-                    <a href="home.view?listType=random">
-                        <img src="<spring:theme code="refreshImage"/>" alt="Refresh" style="height:16px;">
-                        <fmt:message key="common.refresh"/>
-                    </a>
-                </td>
-            </c:when>
-            <c:otherwise>
+
+        <c:if test="${model.listType ne 'random'}">
             <sub:url value="home.view" var="previousUrl">
                 <sub:param name="listType" value="${model.listType}"/>
                 <sub:param name="listOffset" value="${model.listOffset - model.listSize}"/>
@@ -42,7 +34,6 @@
                         <fmt:param value="${model.listOffset + fn:length(model.albums)}"/>
                     </fmt:message>
                 </td>
-                </c:if>
 
                 <c:if test="${model.listOffset gt 0}">
                     <td><a href="${previousUrl}"><img src="<spring:theme code='backImage'/>" alt=""></a></td>
@@ -51,12 +42,15 @@
                 <c:if test="${fn:length(model.albums) eq model.listSize}">
                     <td><a href="${nextUrl}"><img src="<spring:theme code='forwardImage'/>" alt=""></a></td>
                 </c:if>
+                <td style="padding-right: 2em">
+                </td>
+            </c:if>
 
             <c:if test="${model.listType eq 'decade'}">
-                    <td style="padding-left: 2em">
+                <td>
                     <fmt:message key="home.decade.text"/>
                 </td>
-                    <td>
+                <td style="padding-right: 2em">
                     <select name="decade" onchange="location='home.view?listType=${model.listType}&amp;decade=' + options[selectedIndex].value">
                         <c:forEach items="${model.decades}" var="decade">
                             <option
@@ -66,10 +60,10 @@
                 </td>
             </c:if>
             <c:if test="${model.listType eq 'genre'}">
-                    <td style="padding-left: 2em">
+                <td>
                     <fmt:message key="home.genre.text"/>
                 </td>
-                    <td>
+                <td style="padding-right: 2em">
                     <select name="genre" onchange="location='home.view?listType=${model.listType}&amp;genre=' + encodeURIComponent(options[selectedIndex].value)">
                         <c:forEach items="${model.genres}" var="genre">
                             <option ${genre.name eq model.genre ? "selected" : ""} value="${genre.name}">${genre.name} (${genre.albumCount})</option>
@@ -77,11 +71,17 @@
                     </select>
                 </td>
             </c:if>
-            </c:otherwise>
-        </c:choose>
+        </c:if>
+
+        <td style="padding-right: 2em;">
+            <a href="javascript:refresh()">
+                <img src="<spring:theme code='refreshImage'/>" alt="Refresh" style="height:16px;">
+                <fmt:message key="common.refresh"/>
+            </a>
+        </td>
 
         <c:if test="${not empty model.albums}">
-            <td style="padding-left: 2em">
+            <td>
                 <a href="javascript:playShuffle()">
                   <img src="<spring:theme code='shuffleImage'/>" alt="Shuffle" style="height:16px;">
                   <fmt:message key="home.shuffle"/>