
Because the oauth library we were using doesn't support Python 3, cloudbase-init could not work on Python 3 for the MaaS metadata service, the only place in the code base where OAuth is needed. This patch replaces oauth with oauthlib. oauthlib is better maintained and has support for Python 2.6-3.4. Change-Id: Iae2995420697bc305f2724ce038db2f2b3ab51e3 Closes-Bug: #1382572