configure to allow updating artist separators

+ remove ampersand from default
+ misc

app/db/sqlite/queries.py

@@ -26,7 +26,7 @@ CREATE TABLE IF NOT EXISTS settings (
     id integer PRIMARY KEY,
     root_dirs text NOT NULL,
     exclude_dirs text,
-    artist_separators text NOT NULL default '/,;,&',
+    artist_separators text NOT NULL default '/,;',
     extract_feat integer NOT NULL DEFAULT 1,
     remove_prod integer NOT NULL DEFAULT 1,
     clean_album_title integer NOT NULL DEFAULT 1,

app/db/sqlite/settings.py

@@ -137,7 +137,7 @@ def load_settings():
     db_separators = db_separators.replace(" ", "")
     separators = db_separators.split(",")
 
-    separators = set(db_separators)
+    separators = set(separators)
     FromFlags.ARTIST_SEPARATORS = separators
 
     # boolean settings