Fix build

Fix the target package in init and change the dependency commons-compress from version 1.1 to 1.4.1

the build is successful, btw when i copy freenet-ext.jar in fred-staging/lib/freenet

I have this error:

fred-staging/src/freenet/store/FreenetStore.java:5: error: package
com.sleepycat.je does not exist
    [javac] import com.sleepycat.je.DatabaseException;

and build failed!

Could be possible that is related to my changes?