Fix rc_model_category() and a few compile warning cleanups#199

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bramp wants to merge 2 commits intobeagleboard:masterfrom bramp:master

+23-23

Commits on Jan 17, 2021

Fixed rc_model_category to return current_category not current_model.
bramp
committed
Fixed multiple cases where a float was being implicity converted to a double.
bramp
committed