Create CONTRIBUTING.md

Simple file (which github will show for those making PRs) containing guidelines for making PRs.
Feel free to comment if you want/need anything added. I can pull the same thing to FML too if you'd like, Lex.
Update CONTRIBUTING.md

Add link to wiki page on contributing
Fix infinite loop in RecipeSorter

If recipe is multiple levels of inheritance from Object and not categorized, cls=cls.getSuperclass(); needs to be repeated more than once. It must therefore be moved to inside the while loop.
Merge pull request #1038 from planetguy32/master

Fix infinite loop in RecipeSorter
Try and fix invalid framebuffer depth/stencil setup, Thanks Ivoforce. Closes #1032
Bump Forge version in prep for release.
get a spelling checker :P
Merge pull request #1044 from bspkrs/patch-1

Fixed typo in update checker
No, this is not me modding either. I'm doing this as a favour for Lex, who's a bit computerless at the minute.

MinecraftForge/FML@77c254a6d9658a38768d53425291e93557fddc85 I am not modding, I am fixing an annoyance. The MCP version has long since been 9.03. Also, the JSON from MC updated..
MinecraftForge/FML@7f01cf549b88f8d5f4dfae7bc17d08f8c5e525c8 I'm still not modding. Player has contributed greatly to the 1.7 release of FML. He needs authorship credit.
MinecraftForge/FML@2b8d0f6680de6257583912f3159cce38ce2bf08c Fix SimpleNetworkWrapper - this is not me modding, I didn't realize it was broken until Pahimar told me.
MinecraftForge/FML@ddee7eb117a50d190d6e987d94076f53b3b6807b Fix vanilla bug causing integrated server saving from 2 threads concurrently after a crash
MinecraftForge/FML@59a5adfdb3ffdffe0df206109dd59a3d4d023afe Registry: Fix Block-before-ItemBlock allocation when loading 1.6 world saves, more validation
MinecraftForge/FML@d88b2aa0c5401c9b2b48cb451f1ab9bbee52bec1 prevent the world from getting saved twice at shutdown
MinecraftForge/FML@9b1cbab03b75fc15905c8ce02f401f48b174782c Registry: Crash earlier with conflicting name/object registrations.
MinecraftForge/FML@7ba167c500cbccc05ce5104e9b26eb6a799aaaa8 Registry: Misc tweaks
MinecraftForge/FML@78248da399c04a438586d1a5d7f36d6d752dd5c3 Registry: Treat all 1.6 entries as items.
Fix issue with flexible rail return value

Between 1.6 and 1.7 the return value to BlockRailBase.isFlexibleRail()
was inverted. While this is not a huge deal and could be worked around
by simply inverting your return value, it does mean its no longer
consistent with the function name and javadocs.
Merge pull request #1050 from CovertJaguar/master

Flexible Rail return value was inverted between 1.6 and 1.7
Adds a new ReplaceBiomeBlocks Event constructor that supplies the metadata array if applicable and updates the ChunkProviderGenerate class to pass in the metadata array.
Merge pull request #1051 from Deadrik/ChunkProviderFixes

ReplaceBiomeBlocks Event changes
Fix for Block.getExplosionResistance getting passed the wrong parameters

It is being sent the x, x, y coordinates instead of x, y, z
Merge pull request #1060 from Azanor/master

Fix for Block.getExplosionResistance getting passed the wrong parameters
Updated FML:
MinecraftForge/FML@2c56c32c5aa8842cfadaf8c237396cdb75673909 Fix saving backups with the raw name. Fix air block not being assigned as the default.
MinecraftForge/FML@d0f8073fa51db7426d5ded373f3404fa60d722f0 Merge pull request #413 from sfPlayer1/master
MinecraftForge/FML@810b1f3075e6061ab189e1f6975bd77b20040d71 Clean some generic warnings up. Make a generic list handler. Helpful for others I think too.
MinecraftForge/FML@fff86ee9d35874bdf77a1eaabe77615441644064 Fix refreshResources not happening if an error occurs.
MinecraftForge/FML@76d8d0e870a4e389167634283984dc10abb08e84 Fix mod version checking
MinecraftForge/FML@b84d0760ae47832e5b1e4d50237b582b2d50d520 Fix display of mod status at the server
MinecraftForge/FML@251af1d09dfbf636e2fb3f323a5345c81cc07aea Fixed memory leak on the client caused by Netty holding references to the World.
Fixed hard references in WorldGenBigTree and ForgeCommand that caused worlds to leak in the client.
Added new hook to WeightedRandom.getItem that allows for use of custom rnadom generators, prevents redundant code in mods.
New GuiScreen events and a new ElementType DEBUG for RenderGameOverlayEvent
Merge pull request #1062 from bspkrs/master

New GuiScreen events and a new ElementType DEBUG for RenderGameOverlayEvent