1100638 - Update task search API to match the serialization used for task collection & task get APIs
remove commented out code
Merge pull request #1025 from pulp/barnabycourt-1100638

1100638 - Update task search API to match the serialization used for other task APIs
1093871 - sorting tasks by default according to when they were created.
fixing two unit tests
Merge branch 'mhrivnak-1093871'