Adds inbox GET for all messages.
Added support for inbox messages by account reference.
Adds support for getting message body.
Adds support for message batches.
Adds support for getting a message by id.
Adds inbox read/unread updates.
Separated request body into query and body.
Adds batch cancel.
Adds batch rename.
Adds inbox delete and fixes JSHint failing to fail(?) on build.
Increased version to 0.0.3