Allow stacktraces with no location information in Safari. Should fix #16.

Author: eriwen

error-stack-parser.js

@@ -28,7 +28,7 @@
                 return this.parseOpera(error);
             } else if (error.stack && error.stack.match(CHROME_IE_STACK_REGEXP)) {
                 return this.parseV8OrIE(error);
-            } else if (error.stack && error.stack.match(FIREFOX_SAFARI_STACK_REGEXP)) {
+            } else if (error.stack) {
                 return this.parseFFOrSafari(error);
             } else {
                 throw new Error('Cannot parse given Error object');