Possible bug when adding observation of 0

[peterdudfield]

version 0.1.1

When adding a observation of 0, we get the error
'validation error:\n - values[0].value_percent: value is required [required]\n
if i change the zeros to ones, then I dont get this error

[peterdudfield]

I can see in the code we use gte, so I'm surprised this happens

[devsjc]

Ah, this is actually due to a subtlety in the way the values are serialized onto the wire in proto using the version 3 syntax - the default values aren't set (which for an integer, is 0). But the validation tool protobuf has specified this field to be required, and as such, thinks the 0 is unset and fails the validation. This can be fixed by removing the required flag. I'll make an issue. Thanks for the spot!

[devsjc]

#38