The plan:
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1. ESS SPSS file is read and preprocessed; transformed into cov matrices
2. User specifies input templates and program (LISREL, Mplus, ...
3. Input files generated from templates
4. Input files run
5. Parameters estimates and their cov matrices extracted from outputs, 
	summary report made (can be qualities, even meta-analysis of qualities)
6. Git commit is done
7. User can go back to 2. or even 1.,
8. History is visible via qgit, can even branch and merge, 
 	keeping track of reports.