UnitGetIncomingHeals is bugged for Paladins and doesn't apply +healing
Can be mitigated by only applying blizzard direct heals from others if the value is greater than healcomms heal value from others.
Also should always use healcomms heal values for myHeals

Example of broken UnitGetIncomingHeals. 
Me: 	paladin healing for 50 base + 950 healing
other:  paladin healing for 50 base + 950 healing without libhealcomm
myHeal: 		1000
myBlizzHeal: 	50
otherHeal: 		0 	--no libhealcomm
otherBlizzHeal: 50
totalHeal: 		1000
totalBlizzHeal: 100
totalHealCorrected: 1050 myHeal + otherBlizzHeal 

Hey Caboyd, sorry for the thread crap. Just wanted to say a huge thanks for doing this. Luna is the best unit frame addon and I'm so glad you've picked it up. Cheers bro, you're the best!