Switch from manual command-line parsing to JCommander.
merge MMcM: Switch from manual command-line parsing to JCommander.

Merge pull request #15 from MMcM/akiban-client-tools/jcommander
https://github.com/FoundationDB/sql-layer-client-tools/pull/15
Add --commit to the dumper, too.
merge MMcM: Add --commit to the dumper, too.

Merge pull request #16 from MMcM/akiban-client-tools/dump-commit
https://github.com/FoundationDB/sql-layer-client-tools/pull/16
Update program names, link to docs
merge nathanlws: Update README with program names and links to docs

Merge pull request #17 from nathanlws/sql-layer-client-tools/readme-update
https://github.com/FoundationDB/sql-layer-client-tools/pull/17
Add option to control constraint check time.
merge MMcM: Add option to control constraint check time.

Merge pull request #20 from MMcM/sql-layer-client-tools/constraint-check-time
https://github.com/FoundationDB/sql-layer-client-tools/pull/20