Set version to 0.2.0b1 for release prep.
Merge branch 'master' into versions/0.2

Conflicts:
	cmd/hekad/main.go
Merge branch 'dev'
Merge branch 'master' into versions/0.2
Merge branch 'dev'
Merge branch 'master' into versions/0.2
Add readme header
Merge pull request #161 from dasmoose/master

Add readme header
Merge branch 'dev'
Merge branch 'master' into versions/0.2
Move StatPacket channel initialization into the StatsdInput's Init method to avoid a
race condition where another plugin's Run method tries to access the channel before
the StatsdInput's Run method has initialized it.
Merge pull request #168 from mozilla-services/features/packet-chan-init

Move StatPacket channel initialization into the StatsdInput's Init metho...
Perform actual message injection in a separate goroutine to free up the filter that's
doing the injection to continue processing incoming messages, prevents deadlock
conditions when the filter doing the injection is itself backing up the router.
Merge branch 'versions/0.2' of github.com:mozilla-services/heka into versions/0.2
Merge branch 'versions/0.2'
Merge branch 'master' into dev
Merge branch 'dev' into features/plugin-restarting