Added acqu_user directory from Sven Schumann (but without compiled stuff)
from http://wwwa2/attachments/article/98/4v4.tgz
[AcquRoot user installation (Jul 19, 2012)]
Merge branch 'master' into user/schumann

Conflicts:
	acqu_user/README
Added empty acqu_user/obj/ and acqu_user/deps/,
Compilation runs now in ROOT enabled shell with
`CCCOMP=g++ acqu_sys=../acqu_core acqu=. make`
but fails due to incompatible TA2Particle class
change acqu_core class to support schumann User Code
delete classes in basel User Code to merge schumann User Code
merge Schumann User Code in master
Append $PATH and $LD_LIBRARY_PATH in setup.sh and Worker Makefiles