[FIX] OPW 572489: backport fix for group full name search from v7.0
[FIX] OPW 572489: backport fix for group full name search from v7.0

  reworked patch for fixing groups name_search by backporting v7.0 revid:
    hmo@tinyerp.com-20120906060924-g6wgamhkzadnbjnq

bzr revid: xal@openerp.com-20130103104723-d2mq2ajj5972slfk
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