Add Elo filter 1000

PR for https://www.smogon.com/forums/threads/give-an-option-for-1000-minimum-elo-in-the-battles-tab-to-filter-out-challenge-battles.3743305/

play.pokemonshowdown.com/js/client-rooms.js

@@ -224,7 +224,7 @@
 			var buf = '<div class="pad"><button class="button" style="float:right;font-size:10pt;margin-top:3px" name="close"><i class="fa fa-times"></i> Close</button><div class="roomlist"><p><button class="button" name="refresh"><i class="fa fa-refresh"></i> Refresh</button> <span style="' + Dex.getPokemonIcon('meloetta-pirouette') + ';display:inline-block;vertical-align:middle" class="picon" title="Meloetta is PS\'s mascot! The Pirouette forme is Fighting-type, and represents our battles."></span></p>';
 
 			buf += '<p><label class="label">Format:</label><button class="select formatselect" name="selectFormat">(All formats)</button></p>';
-			buf += '<label>Minimum Elo: <select name="elofilter" class="button"><option value="none">None</option><option value="1100">1100</option><option value="1300">1300</option><option value="1500">1500</option><option value="1700">1700</option><option value="1900">1900</option></select></label>';
+			buf += '<label>Minimum Elo: <select name="elofilter" class="button"><option value="none">None</option><option value="1000">1000</option><option value="1100">1100</option><option value="1300">1300</option><option value="1500">1500</option><option value="1700">1700</option><option value="1900">1900</option></select></label>';
 			buf += '<p><form class="search"><input type="text" name="prefixsearch" class="textbox" value="' + BattleLog.escapeHTML(this.usernamePrefix) + '" placeholder="username prefix"/><button type="submit" class="button">Search</button></form></p>';
 			buf += '<div class="list"><p>Loading...</p></div>';
 			buf += '</div></div>';