Refs #8: backported size_trail_ fix from 3.x to 2.x
Refs #19: removes Docs/mysql.info from deb build 5.5.list
refs #14 - evs improvements for big groups and packetloss

EVS:
* Improvements in membership protocol to handle better big number
  of concurrently joining nodes
* Reduced default install timeout to half of inactive timeout to restart
  gather phase faster if consensus is not reached
* Made membership protocol to try harder to keep majority of nodes in group
  in case install timeout expires
* Implemented isolation mode so that node can isolate itself from other
  group for a while if membership protocol does not converge fast enough
* Fixed flaw in user message loss checking, now also delayed messages are
  detected
* Improved message recovery so that any node can retransmit user message
  in behalf of message originator if gap message originator requests so
* Compactified UUID string representation and evs state dumps

Other:
* Protocol level support for fencing
* Extended gmcast relaying to last peer_timeout_ after full connectivity
  has been established
refs #14 - evs improvements for big groups and packetloss

EVS:
* Improvements in membership protocol to handle better big number
  of concurrently joining nodes
* Reduced default install timeout to half of inactive timeout to restart
  gather phase faster if consensus is not reached
* Made membership protocol to try harder to keep majority of nodes in group
  in case install timeout expires
* Implemented isolation mode so that node can isolate itself from other
  group for a while if membership protocol does not converge fast enough
* Fixed flaw in user message loss checking, now also delayed messages are
  detected
* Improved message recovery so that any node can retransmit user message
  in behalf of message originator if gap message originator requests so
* Compactified UUID string representation and evs state dumps

Other:
* Protocol level support for fencing
* Extended gmcast relaying to last peer_timeout_ after full connectivity
  has been established

Merge commit '7f1120afab011cd90f3c75781e6cfe05c595bb8a' into 3.x

Conflicts:
	gcache/src/GCache_seqno.cpp
	gcomm/src/evs_message2.hpp
	gcomm/src/evs_proto.cpp
	gcomm/src/gmcast.cpp
	gcomm/src/gmcast_message.hpp
	gcomm/src/gmcast_proto.cpp
	gcomm/src/gmcast_proto.hpp
	gcomm/test/check_evs2.cpp