Support investigations in place of building. Need the following still:

 * Clean up code (add an investigation checker, maybe don't use cctray API as a foundation?)
 * Properly parse investigation response XML
 * Support configurations of build light (Reg, Green, BlueOrYellow)
 * Add configuration for mappings of statues to colors (Failed = FlashingRed, Investigation = BlueOrYellow, Unknown = FlashingGreen, etc)