[fixup/theme] Fix theme paths and other related paths in module files

Due to the new extension system some paths to files are no longer correct
and need to be fixed. Additionally, an event listener that allows the
loading of portal.css has been added.

B3P-118

root/styles/prosilver/theme/portal.css

@@ -35,7 +35,7 @@ span.portal-corners-top-inner, span.portal-corners-bottom-inner{
 }
 
 .portal-navigation ul li a{
-	background-image: url("{T_THEME_PATH}/images/portal/arrowbullet.gif");
+	background-image: url("./images/portal/arrowbullet.gif");
 	background-repeat: no-repeat;
 	background-position: center left; /*custom bullet list image*/
 	display: block;
@@ -76,6 +76,10 @@ span.portal-corners-top-inner, span.portal-corners-bottom-inner{
 	margin-bottom: 0px;
 }
 
+#portal-body td {
+	vertical-align: top;
+}
+
 /**
 * margin spacing as in default prosilver for the forumlist
 */
@@ -85,7 +89,7 @@ span.portal-corners-top-inner, span.portal-corners-bottom-inner{
 
 /* RTL language fixes */
 .rtl .portal-navigation ul li a{
-	background-image: url("{T_THEME_PATH}/images/portal/arrowbullet_rtl.gif");
+	background-image: url("./images/portal/arrowbullet_rtl.gif");
 	background-position: center right; /*custom bullet list image*/
 	padding-right: 19px; /*link text is indented 19px*/
 }