Save packages to the support dir by default, but continue to support mods/*/packages

mods/cnc/chrome/gameinit.yaml

@@ -3,7 +3,7 @@ GameInitInfo@INIT_SETUP:
 	TestFile: conquer.mix
 	GameTitle: Command & Conquer
 	PackageURL:http://open-ra.org/get-dependency.php?file=cnc-packages
-	PackagePath:mods/cnc/packages/
+	PackagePath:^/packages/cnc
 	InstallMode:cnc
 	Delegate:GameInitDelegate
 

mods/cnc/mod.yaml

@@ -6,10 +6,11 @@ Metadata:
 	Standalone: true
 Folders:
 	.
-	mods/cnc
-	mods/cnc/bits
-	mods/cnc/uibits
-	$mods/cnc/packages
+	./mods/cnc
+	./mods/cnc/bits
+	./mods/cnc/uibits
+	~./mods/cnc/packages
+	~^/packages/cnc
 
 Packages:
 	overrides.mix

mods/ra/chrome/gameinit.yaml

@@ -3,7 +3,7 @@ GameInitInfo@INIT_SETUP:
 	TestFile: redalert.mix
 	GameTitle: Red Alert
 	PackageURL:http://open-ra.org/get-dependency.php?file=ra-packages
-	PackagePath:mods/ra/packages/
+	PackagePath:^/packages/ra
 	InstallMode:ra
 	Delegate:GameInitDelegate
 

mods/ra/mod.yaml

@@ -7,10 +7,11 @@ Metadata:
 
 Folders:
 	.
-	mods/ra
-	mods/ra/bits
-	mods/ra/uibits
-	$mods/ra/packages
+	./mods/ra
+	./mods/ra/bits
+	./mods/ra/uibits
+	~./mods/ra/packages
+	~^/packages/ra
 
 Packages:
 	~main.mix