Added temporal composition rule
Refined TemporalCompositionRule, look-up
Added composition table for look-up, MindAgent and example
Added __init__ file
Added more debug messages.
Add missing delete messageCentral in dtor
Fix minor comment typos
Simplify code in Router class
Minor optimization in Router::closeControlSocket and Router::closeDataSocket
Set Router::persistState() as const
Minor cleanup; add some utility functions
Fixed the inconsistent results bug, fixed minor bugs in propose.scm
Merge branch 'anaphora_resolution' of https://github.com/hujiewang/opencog into anaphora_resolution

Need to merge modified atomspace.scm
Fixed the sorting bug
Added test Pattern Mather ouput link order.
Merge pull request #893 from shujingke/PM

More debug on Pattern Matcher.
spell error fix
replaced default call back by attentional focus callback
deleted my nonsenses
another way