More bug fixes

Fixed a memory leak in the CAPI for transforms

Fixed a looping bug for the iterative fits in fit-grains CLI option. Namely, there was an indexing error in the default behavior, which would skip the first iteration in case is got an estimate other than the default solution ( position [0, 0, 0], no strain). This behavior has been removed in this release; we may offer a option to use it via the config file if we miss it...