Update WeeChat logo, rename weechat_icon_32.png to weechat.png

qweechat/data/icons/README

@@ -2,7 +2,7 @@ Copyright and license for images
 ================================
 
 
-Files: weechat_icon_32.png, bullet_green_8x8.png, bullet_yellow_8x8.png
+Files: weechat.png, bullet_green_8x8.png, bullet_yellow_8x8.png
 
   Copyright (C) 2011-2016 Sébastien Helleu <flashcode@flashtux.org>
   Released under GPLv3.

qweechat/qweechat.py

@@ -550,6 +550,6 @@ class MainWindow(QtGui.QMainWindow):
 app = QtGui.QApplication(sys.argv)
 app.setStyle(QtGui.QStyleFactory.create('Cleanlooks'))
 app.setWindowIcon(QtGui.QIcon(
-    resource_filename(__name__, 'data/icons/weechat_icon_32.png')))
+    resource_filename(__name__, 'data/icons/weechat.png')))
 main = MainWindow()
 sys.exit(app.exec_())