Release 0.16.0

0.16.0

What's Changed

• Update args for create/update individual application by @michberr in #330
• Commenting out billers test by @ilyamerman in #335
• accountNumber is not optional by @axshani in #334
• support defaultFundingAccount by @axshani in #327
• Applications Update by @axshani in #333

Full Changelog: 0.15.0...0.16.0