CSPACE-5939: First iteration of script to generate set of SELECT queries from PostgreSQL logfiles.
CSPACE-5939: Script to extract queries now accepts command line options, including logfile name, and creates output directory for SQL queries.
CSPACE-5939: First fully-working version of script.
CSPACE-5939: Added option to limit number of queries extracted.
Merge pull request #5 from aronr/CSPACE-5939

CSPACE-5939: Script to extract SQL SELECT queries from PostgreSQL logfiles.
Merge remote-tracking branch 'upstream/master'
CSPACE-5939: Slightly renamed script file for clarity.
CSPACE-5939: Fixed trivial typo in script usage instructions.
NOJIRA: Added two subdirectories of the db-benchmark directory to .gitignore. These subdirectories might automatically be created if the db_benchmark.pl script is invoked with default options.