Fix warnings in Forge codebase.
Updated FML:
MinecraftForge/FML@7c5d62704ac1d3e586f3bfe26265a534e5362c73 Make UniqueIdentifier final and add a hashCode. Closes #348
MinecraftForge/FML@ff7b5845e7f6b300d413b917f57adc472a4ebcff Clean up some warnings about @Override
MinecraftForge/FML@275ccac6f14bc66b88c76b1040aa7167f995967c Fix NPE at startup
MinecraftForge/FML@2a5a8d0cd062d3feac9c4de234e3dab1ff4462e5 Fix memory leak?!