Cleanup: use built-in captures mechanism
dummy test
Reified: fix free-term-based simplification (TODO: lift captures up)
Reified: renamed ReifiedValue to Reified
Reified: inline all stable captures
Reified: reoptimize loops
Reified: simpler captures flattening
Reified: brought perf back up to previous CaptureTag-based version
Reified: move utils
Casbah DSL experiment: `query(_.foo < 10)` instead of `"foo" $lt 10`
Casbah: added isInstanceOf -> $type
Casbah: added `doc.contains(key)` -> `key $exists true`, `!doc.contains(key)` -> `key $exists false`
Casbah: some scaladoc
Casbah: support path notation
Casbah: less noise unless SCALAXY_CASBAH_VERBOSE=1
Casbah: leave fake methods unimplemented
Casbah: use quasiquotes from macro paradise
Casbah: rm non-quasiquote dead code
Scalaxy/Privacy: make all members private by default, unless `@public` is set
misc changes