Periodic formatting cleanup

This is the semi-irregular comment and docs cleanup.

No functional changes should be here although some code is moved in a
small attempt to sort functions and get things where they need to be.

Change-Id: Ib4a3e2590c6fbd016c391acc7aef6421e91c0dca
Install agent packages when running the Nicira plugin.

This is necessary because currently the plugin uses the dhcp amongst
other agents.

Fixes bug #1190057

Change-Id: If9e79de2cf547076e0cac7ac0f71c9fb7fc2758f
Merge "Periodic formatting cleanup"
Merge "Install agent packages when running the Nicira plugin."