Build the LLFI-GUI dir into the llfi build path
Acquire fault_type.txt from the LLFI build dir.

Get the fault_type.txt file from the LLFI build directory instead of the current dir
Acquire .txt input files from the LLFI build dir.

Acquire .txt input files from the LLFI build dir.
Update README.md
Let Build.xml generate java file directly
Generate jar file to llfi build path
Merge pull request #27 from DependableSystemsLab/GUI

The build.xml will generate the java file directly into llfi build path.
Users can use the java file at anywhere, the output files will be generated into the current directory.
The input files are at the llfi build path under LLFI_GUI dir, and they do not need to be at the current directory.
Merge branch 'master' of https://www.github.com/DependableSystemsLab/LLFI