Changelog and version updates for v0.99.0
Introduce dxpy.cli.INTERACTIVE_CLI

This should be used when determining whether to use interactive prompts, instead of sys.stdin.isatty() or sys.stdout.isatty().
[PTFM-11713] Expand tests for dx-app-wizard
Use unicode for test app directory names
Bump nose from v1.3.1 to v1.3.3
Decode subprocess stderr as well as stdout