Pseudomoaner/FAST: FAST (v2.1)

Changes relative to v2.0.1: During data import: Improves guidance about a common Bioformats error, lets the user know that the .jar is missing and tells them where to stick it. Fixes bug in which the size of upsampled images was incorrectly stored in the metadata. In the segmentation module: Halo removal added. Allows background regions that are segmented out by the texture detection process to be automatically removed. Recursive watershed added. Allows objects that are too large to have been correctly segmented (i.e. that have been under-segmented) to be subjected to successively more stringent morphological watershed. Helps to break apart stubborn clumps. Adds progress bar to segmentation GUI to prevent user interaction during on-line processing. Fixes issue in which transparent overlays were sometimes not displayed correctly. In the tracking module: Fixes bug to allow tracking over empty frames. In the toolbox: Adds the extractTimePoints script, which allows easy conversion of data from track to slice representations