Pathos cut (AllenInstitute#79)

* trying to cut pathos from library

* stripping pathos

* fixing tests

* added enter

* added a simple code coverage test of parallel calls

* missing import

* removing test of code coverage

* removing test

added enter

added enter

fixed test

Merge pull request AllenInstitute#64 from fcollman/test_settings_fix

tests: allow RENDERAPP_EXAMPLE_DATA to override RENDER_EXAMPLE_DATA

Merge pull request AllenInstitute#64 from fcollman/test_settings_fix

tests: allow RENDERAPP_EXAMPLE_DATA to override RENDER_EXAMPLE_DATA

changed to pip install

Merge branch 'develop'

Merge branch 'develop'

Merge pull request AllenInstitute#56 from fcollman/scm_tools

changed to scm_version