Fix chat opacity

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Merge pull request #1225 from williewillus/master

Fix chat opacity
Fix comment derp (+1 squashed commits)

Squashed commits:

[52c40bc] Fix experience orbs spawning at 32x coordinates clientside

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Merge pull request #1226 from williewillus/xporb

Fix experience orbs spawning at 32x coordinates clientside
Fixed missing assignment of constructor arg (thanks @Lunatrius)

I must have edited this out when I was cleaning up my formatting commit spam.
Merge pull request #1232 from bspkrs/patch-3

Fixed missing assignment of constructor arg (thanks @Lunatrius)
Changed exception message for duplicate enchantment ids to contain the
class path for both enchantments along with the enchantmnet id that has
been duplicated.
Merge pull request #1235 from darkhax/master

Changed exception message for duplicate enchantment ids
Updated FML:
MinecraftForge/FML@9d40b761974f10ec2b5868a992260792f8a98e5d Don't scan ObjectHolders if there was an error already, derpitude will ensure.
MinecraftForge/FML@76538c1781d6d6a1e4134fb317af99e6f13b46cc Add a terminal transformer and tweaker.
MinecraftForge/FML@aec9228845e50107112bd1f8693f9b4729694c8b Add ExitVisitor to the TerminalTransformer that finds and intercepts any calls to Runtime.exit or System.exit.
MinecraftForge/FML@908491d5e7ac26becdac938f38cc90d6b9d73ce1 Move LaunguageRegistry call above normal asset loading to allow resource packs to override mod's language systems.
MinecraftForge/FML@d13295e28113a1c310d5bbb90ebfe241fefabe02 Fix FMLAT manifest AccessTransformers, class loader fun!
Fixed NPE that happens sometimes when exiting the game witout fully loading a world {main a dev-time thing}
Made skulls respect Block.isReplaceable when placing, also prevented them from deleting blocks when placed at certain angels. Closes #1233