Fix to make the controller responsible for setting the directory path of gauges.
Make outdir_p and F_path python properties so that they reflect the update in the controller outdir
write output in temp directory for
add get global aux feature
add get global aux feature
disable writing outputs in tests
modification
revert changes in util.py
Make gauge directory creation happens only if the user added gauges. Some modification to the psystem test
remove gauges_added flag and revert changes in peano tests
suggested fix for writing and reading aux arrays
Setting the value of aux_viewer_filename anyway. The case when the file
does not exist is handled in the code later.
Merge pull request #228 from amal-ghamdi/aux_io_fix

suggested fix for writing and reading aux arrays
remove unnecessary import
Add function to return ghost cell centers in Dimension.
Merge pull request #229 from ketch/add_ghost_centers

Add function to return ghost cell centers in Dimension.
add io test
read test results from file
add feature: get_aux_global to the state class
editing io test and add test data
add reading gauges from files in psystem test, beside comparing in memory