That rake/dsl infects Object with Rake::DSL is an unintended consequence of the previous top level environment setup between 0.8.7 and 0.9.0.
This allows 1.9 to be installed atop a gem-installed rake but not crash
Always reset PWD
remove obsolete DSL notes and clarify incompatible DSL changes
… so we no longer need to worry about polluting other tests in ruby
Switch all tests to requiring test/helper.
… 'Rake' so we don't collide with other tests in ruby, change test file names to work with autotest.
After talking to the JRuby folk, the 'import' name conflict is long past being an issue.