red-brick: Call processEvents() during model building to keep UI alive
red-brick: Arguments for rename script are already UTF-8
red-brick: Add "coding: utf-8" header to all scripts
red-brick: Transfer logs and files listing zlib compressed

This allows to transfer less data over the stdout pipe that is currently
limited to 1 MB.
red-brick: Store the type (file or directory) with each files tree item

Use this information to give a better title on the rename dialog.