Update java.util.jar to openJdk8u60

Attributes.java
- header change
- Use of generics
- Updated documentation links
- Deprecated:
 EXTENSION_INSTALLATION, IMPLEMENTATION_VENDOR_ID, IMPLEMENTATION_URL

JarEntry.java
- header change
- Updated javadoc

JarFile.java:
- Entry enumerator moved to seperate static inner class
- Streams implementation
- Non-crucial META-INF/* (not *.SF|*.DSA|*.RSA|*.EC|MANIFEST.MF) files are not
passed to JarVerifier in .intializeVerifier() call. Otherwise we could signal
the end of META-INF parsing (due to changes in JarVerifier).
- Refactoring of hasClassPathAttribute, divided into
many methods
- Android-changed: Commented out isKnownNotToHaveSpecialAttributes()
method that doesn't make sense on android

JarOutputStream.java
- Header change
- Replaced a use of "& 0xff" with a cleaner conversion to unsigned int

JarVerifier.java
- Use of generics
- beginEntry explicitly omits META-INF manifest and index signature
check (So they can be passed to beginEntry without side-effects)
- beginEntry process properly non-crucial META-INF/ entries (not
*.SF|*.DSA|*.RSA|*.EC|MANIFEST.MF) and checks their signatures
(added a test for that)
- Change from "Enhance signed jar verification": .entryNames
treats .findMatchingSigners(c) null result as empty array
(probably a bug fix).

Manifest.java
- Use of generics
- Replaced a use of "& 0xff" with a cleaner conversion to unsigned int

Pack200.java
- Copyright update
- javadoc formating changes
- addPropertyChangeListener & removePropertyChangeListener gained empty default
implementation and deprecated

SignatureFileVerifier.java:
- uncommented isSigningRelated (requried by JarFile)

Test: CtsLibcoreTestCases
Change-Id: I56c59fac628c97a8b7c6967a43c0e23c8b068120