Undeprecate ignoreErrors

Author: mattrobenolt

src/raven.js

@@ -52,10 +52,6 @@ var Raven = {
             lastSlash = uri.path.lastIndexOf('/'),
             path = uri.path.substr(1, lastSlash);
 
-        if (options && options.ignoreErrors && window.console && console.warn) {
-            console.warn('DeprecationWarning: `ignoreErrors` is going to be removed soon.');
-        }
-
         // merge in options
         if (options) {
             each(options, function(key, value){