Debian and RedHat packaging scripts. The configure script has been
rationalized (introduction of two shell functions to find package
headers and libraries). Extensive update of the INSTALL writeup,
including description of all new packages (SapDB, PgSql, etc.).
More options to the root-config script. Man page for memprobe.
Big overhaul of the Debian and RedHat packaging scripts, supporting
the new libraries.


git-svn-id: http://root.cern.ch/svn/root/trunk@3719 27541ba8-7e3a-0410-8455-c3a389f83636