add args xpt
add macro arg complete
add member function args complete
fix little bug
add try for error
add class key for member search
fix little bug
add python args complete
fix all filetype member
add java args xpt
avoid NULL signature BUG
fix NULL parameters problems
fix match case problems
add Choose( ) for more than one aregs to select
change getsignature function into s:f
change sort function into xptfunc
add path delimiter
fix some bugs