updating scaladoc for ScalaTest 2.0
Added support of building with JDK 7.
Changed README.md about the newly support JDK 7 build.
Minor cleanup when going through TODOs.
Merge branch 'darlene-scaladoc-for-scalatest-05' of https://github.com/wallachd/scalatest
Plus some tweaks.

Conflicts:
	src/main/scala/org/scalatest/WordSpec.scala
Merge branch 'java7' of https://github.com/cheeseng/scalatest
More TODO cleanup and Scaladocing.
Implemented and documented the scan methods on Every.
Added 3 missing lifecycle methods to SuiteMixin.
Added initialCommands to sbt build.
Added pretty toStrings to TolerantEquality's produced by TolerantNumerics.