Move conftest to use testr

Includes the following merges:

• PR #7: Move conftest for tests

Update regression testing post-cxotime

Includes the following merges:

• PR #6: Update regression testing

New test answers post-shiny

Merge pull request #5 from jzuhone/update_answers

Update answers for shiny

test refactor

Refactor tests in response to changes in acis_thermal_check

Use acis_thermal_check 3.0

Merge pull request #1 from jzuhone/atc3.0

update fep1_mong_check for acis_thermal_check 3.0