Update to Minecraft 1.7.10

Continued from issue #953 .

This pull request is not to be accepted until the following is done:

- MinecraftForge/MinecraftForge#1367 (Place events for Forge) is accepted.
- The "new" branch for Forge is merged into their mainline
- If MinecraftForge/MinecraftForge#1403 (Permissions API) is accepted, all the better.