Added a separate agent for using pattern miner without OAC.
Added a separate Atomspace for loading clean test corpus.
Fixed a bug in CMakelist file for pattern miner.
Added the necessary pre-load scm files into corpus Atomspace.
Merge branch 'master' of http://github.com/opencog/opencog into PM
Comment out the pre-load Pattern Miner corpus scm file in embodiment default conf file.
Merge branch 'master' of http://github.com/opencog/opencog into PM
Merge branch 'master' of http://github.com/opencog/opencog into PM
added a customized Atom2String function to make keystring for unified pattern.
Fixed sorting patterns and extra the first gram patterns.
initial directory structure for dockerized distcc and buildslave
Fixed bugs in find all instances for a pattern.
Move logger tools under scripts/util
Have logger operator<< support any input type
Improve comment layout
Add script to sort the log messages in chronological order

It appears that sometimes the messages are not in order, I am not sure
how that occur. Anyway, this really adds another burden to
debugging. That script fixes that. Maybe the logger should be fixed in
the first place but I don't know how.
Fixed variable map problems.
combo: remove un-needed using
Merge pull request #730 from ngeiswei/logger_tools

Logger tools
remove more using files, and bogus header includes