Feature/47 hhaccount conversion

Adding some type checking and improved the algorithm for rendering Account fields w/o blowing out describe limits. A VF remoting action was added for secondary checking if the field list is too long to be checked at the rendering of the picklist component. 

@jlantz can you let me know when we're ready for builds again?
@njjc can you give me a sanity check of my logic on this request?

Once we get an affirmative from both of you guys, feel free to merge.