fix pleasant progress throwing error when ran from child_process.exec, references #434
check if stdout is TTY before trying to clearLine or cursorTo(0)
removing insight, adding leek
Adds tracking code
Adds Leek
Moving to injection dependencies instead of passing them as parameters
Fixing tests
Tracking Livereload
Deleting `insight`
Replacing insight tests with leek tests
Merge pull request #448 from twokul/analytics

Integrate Leek
Update changelong for #448
Document bin/ember resolve paths
Merge pull request #453 from mixonic/document-ember-bin

Document bin/ember resolve paths
Refactor to rename parse-cli-args to command-factory and be more specific about dependencies. LM / SP
Use current directory to grab testem.js.
Merge pull request #456 from rjackson/fix-testem-require

Use current directory to grab testem.js.
Maintain the live build output in tmp/output.
Merge pull request #458 from mixonic/add-diff

Add some tests, refactor render() to return a promise, use expand for options
Merge pull request #457 from rjackson/live-test-output

Maintain the live build output in tmp/output.