keep view and slice fixed in project page

Created by: r03ert0

In the MRI pages the slice and view are set to those stored in memory if the user has already visited the file. This behaviour is conserved in the project page: if a user clicks on an MRI that has been already visited, view and slice are set from memory. A more useful behaviour for the project page would be to override the settings in memory and try to conserve those in from the toolbar. In that way the client could choose to quickly browse all MRI volumes in a specific sagittal plane, for example.