Add log4j.properties and save logs to a file
The output from the driver is directed to stderr and a unique file name is
used for each benchmark.
Add milliseconds to log4j and print logfile name
Merge pull request #13 from shivaram/master

Add log4j.properties and save logs to a file
Changes to added Patrick PR 12 comments.
Merge branch 'amplab-master'

Conflicts:
	bin/run