Update 2.4.0pre2  steam and textures

Added a console notification in regarding a known exploit and how to
deal with it.
Added config to disable steam.
Added comment for steam output value suggestion.
Added and rearranged textures.
Added tooltip to IC2 converters for power rate limitations.
Update 2.4.0pre3 config update

Updated recipes for Steam converters.
Added config to disable optional recipes per mod.
Merge pull request #20 from sparroha/master

Update 2.4.0pre2  steam and textures