minor layout updates related to new alert styles

css/tt-rss.css

@@ -288,7 +288,7 @@ div.filterTestHolder {
 
 .alert {
 	padding: 8px 35px 8px 14px;
-	margin-bottom: 20px;
+	margin-bottom: 10px;
 	text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
 	background-color: #fcf8e3;
 	border: 1px solid #fbeed5;

plugins/af_psql_trgm/init.php

@@ -157,8 +157,6 @@ class Af_Psql_Trgm extends Plugin {
 		print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"plugin\" value=\"af_psql_trgm\">";
 
 		print_notice("PostgreSQL trigram extension returns string similarity as a floating point number (0-1). Setting it too low might produce false positives, zero disables checking.");
-
-		print "<br/>";
 		print_notice("Enable the plugin for specific feeds in the feed editor.");
 
 		print "<h3>" . __("Global settings") . "</h3>";