[~API] FLOW3 (Utility): Renamed detectBaseUri() to getBaseUri().
[~TASK] FLOW3 (MVC): Recomitted my previous change in getRequestPath and reworked the path rendering in the Request object (now is called "route path"). Relates to #6596
[~BUGFIX] FLOW3 (Security): The WebRedirect entry point now takes the Base URI into account. That means you'll have to specify a relative URI in your settings for defining a web entry point (i.e. no leading slash!).