0.4.1

This is a recommended update for all users that:

• Fixes an issue where Oxygen Saturation and Body Fat Percentage serialization used the fractional representation of values [0,1] instead of the percent representation [0%, 100%].
• Fixes an issue where generic quantity samples with percent units used the count property instead of the unit_value property.
• Fixes an issue where generic quantity samples with percent units used the fractional representation of values [0,1] instead of the percent representation [0%, 100%].

In these cases, we now use the percent values.