Tags give the ability to mark specific points in history as being important
orwl with gcc 4.4 detected an aliasing bug
synchronized with ORWL
improve portability
synchronize the better feature test capabilities with ORWL
a collection of minor improvements
add vector extensions
synchronize with bugfix in P99
use p99_getopt also in orwl tutorials
synchronize ORWL and P99 for the LIFO code