Window.tscn was renamed to MainScreen.tscn

- New Credits window and it's respective button
- Renamed panel_height to content_height
- Window content text now supports BBCode
- Made sure the content height doesn't exceed 216 pixels
- GPL license notice now included in the about window
- SixAM splash screen

MainScreen.tscn

@@ -0,0 +1,40 @@
+[gd_scene load_steps=6 format=2]
+
+[ext_resource path="res://assets/dress up bg.png" type="Texture" id=1]
+[ext_resource path="res://assets/zack.png" type="Texture" id=2]
+[ext_resource path="res://assets/lights.png" type="Texture" id=3]
+[ext_resource path="res://Clothes.tscn" type="PackedScene" id=4]
+[ext_resource path="res://Interface.tscn" type="PackedScene" id=5]
+
+[node name="Window" type="Node2D"]
+
+[node name="Background" type="Sprite" parent="." index="0"]
+
+position = Vector2( 400, 277 )
+texture = ExtResource( 1 )
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="Zack" type="Sprite" parent="." index="1"]
+
+position = Vector2( 85, 352 )
+texture = ExtResource( 2 )
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="Lights" type="Sprite" parent="." index="2"]
+
+position = Vector2( 477.823, 100.811 )
+texture = ExtResource( 3 )
+_sections_unfolded = [ "Z Index" ]
+__meta__ = {
+"_edit_lock_": true
+}
+
+[node name="Clothes" parent="." index="3" instance=ExtResource( 4 )]
+
+[node name="Interface" parent="." index="4" instance=ExtResource( 5 )]
+
+