Exceptions an People-related Objects Pre-release

Changes since v. 1.1.0:

Improvements

• Added support for people lists, tags, and contacts.
• Added remote exception marshalling.
• Added a FireWebhooks property to Nation Builder sessions.
• Switched object IDs to long.

Bug Fixes

• Fixed URI component encoding, fixed URL parameter order in ShowPersonWithExternalId().

Development Improvements

• Added unit tests.