Update to MC 1.7.10

Version bump to 3.3.B79
Forge version 10.13.1.1217
TerraFirmaCraft version B79
Added .gitignore
Added gradle system. Now you can use gradle or the provided gradlew file
to build this project. For the build to work you need to create a libs
directory and copy the TFC deobf jar file into it, then use "gradlew
build". The resulting .jar file can be found in "build/libs" directory.
Changed the package name from "emris.LeatherWaterSacTFC" to
"emris.lwstfc".
Added more splash particles.