active parameter in the list_* calls is not intuitive

[emre]

in the SPS API Plugin list_proposals and list_voter_proposals have a parameter named active where one can pass 1, 0, or -1. It sounds like a boolean field by its naming, however, it's not.

Instead of that I propose to change that parameter's name to the status where options can be String.

• active
• inactive
• all

[bwsdeveloper]

I like this idea, enum values are much more readable.

[bwsdeveloper]

Merged:
2e5779b
#71