The Compilation part (Setup) was done mostly by Minalien, I just changed it a bit. Some credit goes to BuildCraft's README.md, which I based this README off of.
2. Download the latest version of MCP from [here] (http://mcp.ocean-labs.de/index.php/MCP_Releases) , e.g. mcp722.zip. Install MCP dependencies as listed on the website if neccessary.
8. Download the latest forge source for Minecraft 1.4.5(pre) and unzip it into `mcp` so that `mcp/forge/install.sh` exists. You need at least Forge 6.4.0.xxx, best way is to get it from [here] (http://files.minecraftforge.net/): http://files.minecraftforge.net/
9. Execute `mcdev/mcp/forge/install.sh` or `mcp/forge/install.cmd`, depending on your platform. On Linux you might have to `chmod +x``install.sh` before you can execute it. On some system configurations you need to execute `install.sh` from within the forge directory whereas on others it doesn't matter. Just check the output for error messages to find out what you need to do.
5. If you've done everything right AND the source code currently compiles, you can execute startclient.sh or startclient.bat inside the mcp directory now to start Minecraft with EE3.