IPH models pull request

[sjanzou]

Please test and resolve issues to merge into for release here!
Goes with NREL/ssc#1238

[cpaulgilman]

@taylorbrown75 For IPH configurations with the Single Owner financial model, I think the "Electricty Rates" page name in the navigation menu should be "Electricity Purchases" to be consitent with front-of-meter CSP and other configurations where electricity purchases are an operating expense. This is to distinguish from behind-the-meter configurations where "electricity rates" are used to calculate electricity bill savings. (You can see that there are separate Help topics for "Electricity Rates" and "Electricity Purchases" so we have separate places to explain how those inputs work.)

[taylorbrown75]

@taylorbrown75 For IPH configurations with the Single Owner financial model, I think the "Electricty Rates" page name in the navigation menu should be "Electricity Purchases" to be consitent with front-of-meter CSP and other configurations where electricity purchases are an operating expense. This is to distinguish from behind-the-meter configurations where "electricity rates" are used to calculate electricity bill savings. (You can see that there are separate Help topics for "Electricity Rates" and "Electricity Purchases" so we have separate places to explain how those inputs work.)

Fixed with (c06063b)