New features:

    the BatchMode flag is a progressbar suppressor flag now for the import/export plugins to avoid parallel progressbar usage
    better progressbar support for the csv import/export plugins and for the animation sequence import/export (with cancel)
    a new cancel button added to the progressbar
    new functions for KisDocument() to create correct progressbar environment for file import/export
    error messages for the user cancelled file operations
    new KisImageBuilderResult.h header instead of the multiple similar KisImageBuilder_Result enum declarations