fix the clash because of format url

Support

Router.open("activity://main/%s", "my");

1. It support set interceptor to Routers and it can intercept some url and do something as users want.

1. Support start Activity with flags.
2. Support use ActivityRouter directly.

1. Give interface to query the histories of activity changing.

Queue<HistoryItem> histories = Router.getActivityChangedHistories();

1. Support multi-schemes for ActivityRouter.

1. Add open(Context, String) in the interface of Router, so users can give the context to do the action.
2. Add setDebugMode(boolean debug), so users can open the output of AndRouter's logs.

Add url in the Intent ActivityRouter's generates, so the routed activity can know the url routes to it.

Add return value in the method of open, let users know if the open is successful.

Dont show error when there is no annotation activity map.