Config: Use project name constant instead of asking GLib

Author: ReinUsesLisp

src/app.rb

@@ -36,7 +36,7 @@ def initialize(app, builder)
     self.show_all
   end
   def restore
-    path = File.expand_path(GLib.application_name, GLib.user_cache_dir)
+    path = File.expand_path($PROJECT_NAME, GLib.user_cache_dir)
     file = GLib::KeyFile.new
     file.load_from_file(File.expand_path("state.ini", path))
 

src/config.rb

@@ -19,7 +19,7 @@
 
 class Configuration
   def initialize
-    path = File.expand_path(GLib.application_name, GLib.user_config_dir)
+    path = File.expand_path($PROJECT_NAME, GLib.user_config_dir)
     filepath = File.expand_path("config", path)
     file = ExtraKeyFile.new(filepath)
     @background_color = file.get_integer_list("UI", "BackgroundColor", [255, 255, 255])
@@ -36,7 +36,7 @@ def initialize
     end
   end
   def save
-    dir = File.expand_path(GLib.application_name, GLib.user_config_dir)
+    dir = File.expand_path($PROJECT_NAME, GLib.user_config_dir)
     file = ExtraKeyFile.new
     file.set_integer_list("UI", "BackgroundColor", @background_color)
     file.set_integer_list("UI", "NoneColor", @none_color)