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
Updating README to remove deprecated syntax.
Adding a ruby version requirment
Merge pull request #15 from apartmentlist/simplifying_blocks

Simplifying blocks