Fixed HtmlReporter issue when '&' character.
Removed directly checking of stack depth and use thisLineNumber from SharedHelpers.
Provides defaults for sonatype credentials and GPG in sbt publish.
Merge branch 'html-rep-fix' of https://github.com/cheeseng/scalatest
Merge branch 'SeveredStackTracesSpec' of https://github.com/cheeseng/scalatest
Merge branch 'sbt-default-gpg-file' of https://github.com/cheeseng/scalatest