Added initial version of Every support to Containing.
Added Every support to Aggregating.
Added Every support to Collecting.
Added Every support to Sequencing.
Changed all tests for Every support in enablers to import Matchers._ instead of mixing it in, and added a TODO to remove the IndexedSeqWrapper hack after Inspector type class refactoring completes.
Merge branch 'every' of https://github.com/cheeseng/scalatest