Stop exceptions from breaking the watcher

Author: thewilkybarkid

src/PatternLab/Watcher.php

@@ -321,7 +321,12 @@ private function updateSite($fileName,$message,$verbose = true) {
 		Annotations::clear();
 
 		$g = new Generator();
-		$g->generate($options);
+		try {
+			$g->generate($options);
+		} catch (\Exception $e) {
+			Console::writeWarning("Failed on update to ".$fileName);
+			Console::writeWarning($e->getMessage());
+		}
 
 	}