Alrighty then....... this is one of those commits that is 3 christmas trees longer than it should be. Started out with fixing a filehandler issue, before realizing that one of the main issues to solve is that for mouse brains the parameters for the LSQ6 and LSQ12 stage should not be based on the file resolution, but on the the size of the subject matter (i.e., brain size). These should thus be all the same for any kind of mouse brain data. Changes in this commit include but are not necessarily limited to:
* option to set default parameters for mouse brains in LSQ6 (regardless of file resolution)
* option to set default parameters for mouse brains in LSQ12 (regardless of file resolution)
* a last resampled volume is recorded within a file handler, any call to mincresample or mincresampleMask is stored in a temporary variable
* setLastBasevol run without any parameters will set the last volume to the last resampled volume
* in order to set the last base volume to the original file, you now have to specify: setToOriginalInput=True
* fixed setting the target for the LSQ12 stage in MBM when using an initial model (should be the standard space file)
* left a comment somewhere saying: "# TODO: finish the following if clause... hahaha", which indeed needs to be fixed