imported Iakin's public domain jcpuid library allowing the detection of CPU types from java

imported Iakin's modifications to jbigi to use the jcpuid library in detecting what jbigi implementation to load
imported and slightly updated Iakin's scripts to build jbigi for lots of architectures
(yay iakin!)

core/c/jbigi/build-all.sh

@@ -0,0 +1,40 @@
+#/bin/sh
+
+case `uname -sr` in
+MINGW*)
+	echo "Building windows .dlls for all architectures";;
+Linux*)
+	echo "Building linux .sos for all architectures";;
+FreeBSD*)
+	echo "Building freebsd .sos for all architectures";;
+*)
+	echo "Unsupported build environment"
+	exit;;
+esac
+
+echo "Extracting GMP..."
+tar -xzf gmp-4.1.3.tar.gz
+echo "Building..."
+mkdir bin
+mkdir lib
+mkdir lib/net
+mkdir lib/net/i2p
+mkdir lib/net/i2p/util
+for x in none pentium pentiummmx pentium2 pentium3 pentium4 k6 k62 k63 athlon
+do
+	mkdir bin/$x
+	cd bin/$x
+	../../gmp-4.1.3/configure --build=$x
+	make
+	sh ../../build_jbigi.sh static
+	case `uname -sr` in
+	MINGW*)
+		cp jbigi.dll ../../lib/net/i2p/util/jbigi-windows-$x.dll;;
+	Linux*)
+		cp libjbigi.so ../../lib/net/i2p/util/libjbigi-linux-$x.so;;
+	FreeBSD*)
+		cp libjbigi.so ../../lib/net/i2p/util/libjbigi-freebsd-$x.so;;
+	esac
+	cd ..
+	cd ..
+done