Appion

The matrix is a good idea in theory but seems we will never get all these tests done in practice. So how about just picking some obvious ones and making sure those work. We certainly never did these exhaustive tests in the past. I would also assume for now during this "emergency" that all we should test are underfocus as that would be 99% of the images we take and I would just post a warning to users that we are unsure of the behavior for overfocus images.

This is for the future testing and the over/under only need to be done at the algorithm level and one image each.

I will aquire one image for each case for this today.

Currently, the pipeline is only designed to handle underfocus. Overfocus should fail, which may be a good test nonetheless.

r17167 adds testAce2.py to myami. It uses the standard python unittest class to run all the tests outlined in the Ace2 CTF Estimation test matrix and compare the results to what is expected.

### This class is used to test the Ace2 program. It will dowload the needed test images from the AMI website, 
### then run ace2.exe and compare the results to what is ecpected. It will remove results files from a prior run
### when running subsequent tests. It does not remove the files after a test is run so that the usr can review 
### the result files if needed. Any functions in this class that begin with "test_" is a seperate test that
### will be executed by unittest.

### To run this test:
### 1. Create a temporary test directory and change directories to it. ex. mkdir ace2test, cd ace2test
### 2. run this file by providing the path to it. ex. python ../workspace/myami/appion/test/testAce2.py
### 3. review the results printed to the terminal.