Patch Improvements

[Twan]

Some little suggestions to speed up pretenders testing and customisation :

- make possible to delete pretender gods without creating a game

- add an "edit an existing pretender god" option in the create a pretender god screen

- allow to cancel game creation / go back to the last screen at each stage of the process (not just at the beginning and the end)

- when loading a pretender in game creation, give access to the pretenders stats by right clicking on the names (with of course password verification before, if the pretender has one) ; or better, once a pretender is loaded, allow to modify it before launching the game (and re-save him eventually)

- give access to the current player's pretender stats during the game even if he's not awaken, by clicking on him in the list of pretenders gods