FIX: add check for process_id to FINISH command
FIX: memory leak in collective operations
FIX: correct places structure contructos and operator=
STY: remove commented code
ENH: delete listener when close simulation
RF: remove packet count and activation size from nodes in .dot file
RF: move all analysis data to node
RF: update bulk test for better bug finding
ENH: Tokens inherit from bindings, copy contructor and operator= in Activation
ENH: delete unneeded memory in statespace
ENH: fire phase 2 use tokens from Activation
RF: activations is vector of pointer of size process_count
ENH: remove fire phase 2 ro binding
ENH: collective tokens are copied
ENH: remove method cleanup_binding
RF: tokens structure allow tokens set to NULL
FIX: iteration through one-column table
FIX: delete history in setting widget

When it is go back in setting widget, then it is necessary to remove history of wrong keys.
ENH: change source repository to a stack structure

Now it is possible to load the same source more than onec; the necessity of unique name was removed.
Merge remote-tracking branch 'om/mem-opt'