fix cos crash - address some valgrind issues - fix kernel version checking
b05139b memleak in normalize_mods2bvals
c0eea24 memleak in mep_parse_config_entry
90bc9eb handle null smods
Ticket #305 - Certain CMP operations hang or cause ns-slapd to crash
Ticket #306 - void function cannot return value
ticket 304 - Fix kernel version checking in dsktune
(cherry picked from commit f064c093b387d5e6b3848e0e8535730c178f1731)
(cherry picked from commit 89286fa5d97faee8062e1392c059b81ca1a49fd3)
(cherry picked from commit 03febf524c628962ef3209c0e80aa5325f042879)