Merge pull request #307 from mossprescott/minor

delete renamed files
Merge pull request #308 from mossprescott/minor

delete duplicated tests (moved to exprop.scala a while back)
Handle many wildcard cases.

Fixes #38 and #229.

It leaves a few outstanding issues:

* results end up nested in `value` field (tracked in #287, but could be
  solved less generally than that for 1.0)
* sorts with expressions can leave extra fields in the result (tracked in #310)
Merge remote-tracking branch 'upstream/master' into ready/38-wildcards
Fix bad skip/limit optimization.

We reorder Skip(5)/Limit(10) to Limit(15)/Skip(5), but a bug made it
Limit(15)/Skip(10).
Merge pull request #312 from sellout/ready/limit-skip-coalesce

Fix bad skip/limit optimization.
Remove unused (and dangerous) `map` method.
A few improvements to coverage stuff.

* Add coveralls stats to the README.
* Change `ready` script to run using scoverage.
* Fail the tests if minimum coverage isn’t met

The minimum coverage is currently 57%. Please try to aggressively bump
this up in any PR that you can. Since we currently can’t do coverage on
integration tests, changes to the REPL, evaluator, etc. may cause
coverage to drop, but this will require lowering the minimum % in
build.sbt, so we can keep an eye on when that happens.
Merge pull request #311 from sellout/ready/38-wildcards

Handle many wildcard cases.
Merge remote-tracking branch 'upstream/master' into ready/coverage-improvements
Merge pull request #314 from sellout/ready/coverage-improvements

A few improvements to coverage stuff.
don't delete collections prefixed with "Slam"