Changed status code returned by tasks exports to be coherent with what will return users export
Added user list export in json and csv formats
Refs PyBossa/pybossa@0d74b9648e0c2788921ecd85715d701d6ea41d55 updates in GUI
Modified unclear test docstrings
Fixed bad mistake; test had a typo and was not testing anything plus testname typo
Fixed some bugs. Added context to remaining taskrun auth tests
Refactor: extracted function for mock creation
Fixed missing return
 Fixes: added back some imports badly deleted in previous commit
Refactor
Modified token auth tests to use mocks and request context
Merge branch 'master' into download-user-list-issue-608

* master:
  Use new theme
  New theme
  Remove old theme
  Removed prints and reduced needlessly high number of tasks in one test at test_sched.py
  Deleted comments in test_token
  Removed non-used url variable from test_hateoas.py, referencing task exports
  Changed wrong comments in test_web.py
  Added print statements to find out more about #669
  Deleted comments in test_token
  Removed non-used url variable from test_hateoas.py, referencing task exports
  Changed wrong comments in test_web.py
Pass categories to front page
Merge branch 'master' into authorization-tests-completion-and-refactor

* master:
  Use new theme
  New theme
  Remove old theme
  Removed prints and reduced needlessly high number of tasks in one test at test_sched.py
Added test to test_admin.py
Added test cases to test_admin.py
Renumbered tests in  test_admin.py
Added users list check to test that checks for buttons for available actions in admin view
Modified admin documentation: added user list download
Merge branch 'master' into authorization-tests-completion-and-refactor

* master:
  Get latest changes