Add some missing checks to prevent errors in IE8. Fix #9

plugins/jsonp-highlight/prism-jsonp-highlight.js

@@ -1,5 +1,5 @@
 (function() {
-	if ( !self.Prism || !self.document || !document.querySelectorAll ) return;
+	if ( !self.Prism || !self.document || !document.querySelectorAll || ![].filter) return;
 
 	var adapters = [];
 	function registerAdapter(adapter) {

plugins/line-highlight/prism-line-highlight.js

@@ -125,6 +125,8 @@ Prism.hooks.add('complete', function(env) {
 	fakeTimer = setTimeout(applyHash, 1);
 });
 
-addEventListener('hashchange', applyHash);
+if(window.addEventListener) {
+	window.addEventListener('hashchange', applyHash);
+}
 
 })();

plugins/previewer-base/prism-previewer-base.js

@@ -1,6 +1,6 @@
 (function() {
 
-	if (typeof self === 'undefined' || !self.Prism || !self.document) {
+	if (typeof self === 'undefined' || !self.Prism || !self.document || !Function.prototype.bind) {
 		return;
 	}