Adding .travis.yml
Removing requirement for username in postgres URL

Username is actually optional.
adding a blank to kick off travis build
Adding Travis Status to README
Adding .idea to gitignore
Removing deprecation warning in specs.
Removing support for locks

Block locks do not play well with sql condition filters, and thus
are useless. Primary goal of this tool is to shrink huge tables,
and locks work only for tiny tables.
Removing filter blocks.

The prime purpose of this tool is to shrink large tables. Filter blocks
are working only on small tables, and add considerable complexity. I'd
like to get it working smoothly, before building up.
Making logggin on by default