remove unnecessary var
update DEBUG messages by supplying the rank as an identifier
remove all unnecessary comments

.. where asking for memory location
.. to add which_tree output
.. to reduce output overhead
.. to only output where uncertainty exists
move search to the top
move enclQuad extraction from if block outside
add a ToDo list
check ToDos
FIX forgotten to remove a second search
simplify output, looked too childish

and left-pad quad coordinates with zeros (ensures uniform looking of
all quad printing, to not disturb the output layout)
add some ToDos
typos
enhance readability of search

search 'MINIQUAD' and not just non self speaking 'q'
ToDo already exists
handle particle lies on another proc case
remove tree indicator

since it's not been set before
FIX move which_tree setting out of is_leaf condition

the tree is already known here and is REALLY important to identify the
belonging proc later
precise comment about is_leaf handling in search callback
ADD simplification flag for finding quads owner

Now it's only needed to check the local_num flag to know if the
particle lies on this proc or not.
Identifiying the proc has still to be done!
already existing double
ADD find_owner resolves proc to which miniQuad belongs

should only be done if miniQuad is not flagged with -1