Web UI search optimization
    
    This patch optimizes options used in commands executed by search pages.
    
    1) Removed --all from _find and _show commands used by search pages. All displayed attributes should be already included in default attributes.
    
    2) Removed search_all_attributes - Not needed since introduction of paging.
    
    3) Added --no-members options to search _show commmands. Members are not displayed on search pages and such change drastically improves performance. It reduces computations on server and amount of data transferred to Web UI.
    
    https://fedorahosted.org/freeipa/ticket/3706