0.2.1

This is a major release for Atomic App that refactors most of the base code as well as adds numerous features.

• Complete refactor of the Atomic App core codebase
• JSON Pointer xpathing for artifacts
• Integration of unpacking to /var/lib/atomicapp rather than cwd
• Numerous bug fixes && improvements to integration tests

Please see the git shortlog summary below for all commits since the previous release.

Charlie Drage <charlie@charliedrage.com> (8):
      Remove dotfiles from tests
      Sync requirements with master. Fixes lockfile issue.
      add xpathing

Dusty Mabe <dusty@dustymabe.com> (15):
      Don't unpack files to cwd
      Enables running atomicapp from within a container again.
      Implement a few comments from code review #356.
      Remove Aaron from MAINTAINERS upon his request.
      Add Ratnadeep to MAINTAINERS :)
      Adds preferred email for Dusty to MAINTAINERS.
      Adds nice error message for Docker client/server out of sync. Closes #174
      Syncs up run labels in Dockerfiles.
      Fixes run label in Dockerfiles so that atomic run <image> works.

Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen@kolabsys.com> (1):
      Use epel-release rather than echo'ing .repo config files

Ratnadeep Debnath <rtnpro@gmail.com> (19):
      Updated docs for file handling for artifact path. #143
      Added note on not supporting nested artifact dir. #143
      Added unittests for Nulecule class.
      Added tests for NuleculeComponent load
      Added tests for NuleculeComponent run.
      Added tests for stopping NuleculeComponent.
      Added tests for NuleculeComponent load_config.
      Added tests for loading external app in NuleculeComponent.
      Added tests for accessing components of a nulecule component.
      In NuleculeComponent, pass 'dryrun' param when calling render of external Nulecule.
      Added tests for rendering a NuleculeComponent
      Added tests for retrieving artifact paths for a NuleculeComponent.
      Added tests for rendering an artifact in NuleculeComponent.
      Reorganize and group code in each testcase for atomicapp/nulecule into
      Bugfix in merging config and updated tests for the same
      Fix unittest for Nulecule load config.
      Fix mocking 'open' in nulecule/base.py.
      Fixed test for rendering artifact.
      Fixed test for rendering local artifact for provider.

Tomas Kral <tkral@redhat.com> (1):
      do not create symlink if source doesn't exist