* Crypto: Rename bouncycastle HMAC libs so they don't conflict

build.xml

core/java/src/net/i2p/crypto/HMAC256Generator.java

core/java/src/net/i2p/crypto/HMACGenerator.java

core/java/src/org/bouncycastle/oldcrypto/Digest.java

core/java/src/org/bouncycastle/oldcrypto/Mac.java

...src/org/bouncycastle/oldcrypto/digests/GeneralDigest.java

...ava/src/org/bouncycastle/oldcrypto/digests/MD5Digest.java

core/java/src/org/bouncycastle/oldcrypto/macs/I2PHMac.java

core/java/src/org/bouncycastle/oldcrypto/package.html

history.txt

router/java/src/net/i2p/router/RouterVersion.java