[boost] [stratified] library for micro-/userland-threads

Hi, some of the community members ask me to provide a micro-/userland-thread library based on boost.context - I hope boost.stratified is a sufficient implementation. The library contains classes and interfaces similar to boost.thread. Examples and documentation (not finished and needs some updates/correction) is included. I hope I get some feedback from you. best regards, Oliver source: http://olk.bplaced.net/boost-stratified.zip documentation: http://olk.bplaced.net/boost/libs/stratified/doc/html/