Railcraft does not want to run with 1.7.10, and wants 1.5 or 1.6. But the Railcraft version is 1.7.10
also 1.7.10 crashed before I switched to release 1.7.10
Try downloading Railcraft for 1.7.10 from here.
"We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far."
It crashed with the latest version of Forge- 1.7.10
"[13:44:35] [Client thread/ERROR]: The mod Railcraft does not wish to run in Minecraft version Minecraft 1.7.10. You will have to remove it to play." It should run. It has ran before.
Use a pastebin site. Your google docs are restricted.