adding more SIP related stuff to the pcaplib
Added write support to Buffer. More SIP stuff ala JAIN SIP
lots of stuff
Buffer.parseAsInt added. More getBytes methods on SIP related classes
added some new ways to create buffers
just added a toString method to Protocol
Fixed some toString, toBuffer. Added clone methods on pretty much everything. Added some factory methods to create new sip messages
added max-forwards processing
added a generic header filter
added TLS as a protocol
added more header manipulation to sip messages etc
small bug where we returned the PDD in microseconds instead of milliseconds as the javadoc said we would
Merge pull request #8 from jonasborjesson/master

A lot of new support for jain sip style stuff.