make vita content package target build

.gitignore

@@ -4,6 +4,7 @@
 /PS3_Release
 /PSVita_Debug
 /PSVita_Release
+/PSVita_ContentPackage
 /X360_Debug
 /X360_Release
 /Release
@@ -18,6 +19,7 @@
 /Minecraft.Client/PS3_Release
 /Minecraft.Client/PSVita_Debug
 /Minecraft.Client/PSVita_Release
+/Minecraft.Client/PSVita_ContentPackage
 /Minecraft.Client/X360_Debug
 /Minecraft.Client/X360_Release
 /Minecraft.Client/Debug
@@ -31,6 +33,7 @@
 /Minecraft.World/PS3_Release
 /Minecraft.World/PSVita_Debug
 /Minecraft.World/PSVita_Release
+/Minecraft.World/PSVita_ContentPackage
 /Minecraft.World/X360_Debug
 /Minecraft.World/X360_Release
 /Minecraft.World/Debug