#14 Extended _get_numeric to return a float
#14 Extended _get_numeric to return a float

Added an optional argument flt to instruct the method to return a float
instead of an integer.

coddingtonbear/python-myfitnesspal,rbelzile/python-myfitnesspal,rbelzile/python-myfitnesspal,tomn46037/python-myfitnesspal,tomn46037/python-myfitnesspal