Organized and added to the shipped file identification signatures.

- Added ISO 9660 disk image
 - Created new files for categorizing signatures better.
   - executable.sig - Executable (and bytecode) files.
   - java.sig - Java related files (class/jar, etc).
   - programming.sig - Mostly scripting language identification

scripts/base/frameworks/files/magic/java.sig

@@ -0,0 +1,31 @@
+signature file-jar {
+	file-mime "application/java-archive", 100
+	file-magic /^PK\x03\x04.{1,200}\x14\x00..META-INF\/MANIFEST\.MF/
+}
+
+signature file-java-applet {
+	file-mime "application/x-java-applet", 71
+	file-magic /^\xca\xfe\xba\xbe...[\x2d-\x34]/
+}
+
+# JAR compressed with pack200
+signature file-jar-pack200 {
+	file-mime "application/x-java-pack200", 1
+	file-magic /^\xca\xfe\xd0\x0d./
+}
+
+# Java Web Start file.
+signature file-jnlp {
+	file-magic /^\<jnlp\x20/
+	file-mime "application/x-java-jnlp-file", 100
+}
+
+signature file-java-keystore {
+	file-mime "application/x-java-keystore", 70
+	file-magic /^\xfe\xed\xfe\xed/
+}
+
+signature file-java-jce-keystore {
+	file-mime "application/x-java-jce-keystore", 70
+	file-magic /^\xce\xce\xce\xce/
+}