Fixes and improvements

* Added tier checks to Hermione chit-chats.
* Fixed issue when picking Hermione's "Mudblood" nickname where no dialogue would play if you haven't fucked her.

* Minor writing fixes.

game/scripts/characters/hermione/events/requests/flash_your_tits.rpy

@@ -429,7 +429,7 @@ label hg_pr_flash_T4_E3:
     her "Instead, as I was outside in one of the courtyards..."
     her "... I just pulled my shirt up and pressed my bare chest against the window of a nearby classroom..." ("angry", "narrow", "base", "down")
     her "I stood there like that for several seconds..."
-    her "To make sure that at least someone would see them from the outside..."
+    her "To make sure that at least someone would see them.."
     her "I hope this still counts, [name_genie_hermione]..." ("angry", "base", "base", "mid")
     gen "*Hmm*..." ("base", xpos="far_left", ypos="head")
     gen "How many students would you estimate, being behind that window?" ("base", xpos="far_left", ypos="head")