Release 0.1.15

What's Changed

• Fixed party name serialization by @SteveMaier-IRT in #309
• Setup default value for votes_allowed to match the number_elected by @SteveMaier-IRT in #312
• For null string values for candidate and party, set them to an empty … by @SteveMaier-IRT in #313
• Validate that n of m elections are encrypting and decrypting correctly by @lprichar in #315
• Updated doc test version by @MatthewRatzell in #314
• When creating placeholders set the IsPlaceholder to true. by @SteveMaier-IRT in #317
• Change string handling to use begin and end instead of front by @SteveMaier-IRT in #318

Full Changelog: v0.1.14...v0.1.15