Changelog of the reboost buffers

2012-05-09; author: Sebastian Mies
+ added compression (miniz) to tlv

2012-05-08; author: Sebastian Mies
+ fixed shared_buffer_t::make_unique()
+ added shared_buffer_t::resize()
o made message_t::operator() const
+ added first type-length-value (tlv) implementations based on the buffers

2012-02-07; author: Sebastian Mies 
+ Message compaction when no. of buffers are depleted
+ Shared buffer concatenation using operator+
+ FreeBSD license header