Increment version
Merge pull request #31 from johnwlockwood/development

Return results from runners
Increment version
decrement version

master version is still 0.2.7
Increment version
Merge pull request #32 from johnwlockwood/mp-flow-pipes

Introducing Stream Tapping
Rename things in tap.

Makes the wording more consistent with
tapping metaphor.
Add simpler tap example with entry in getting started.
Merge pull request #33 from johnwlockwood/development

Finalize 0.2.8 with Tap
Add tap_example to source doc
Add link to source tap example docs