REL-1826 Added Unblocked modes for GPI #time 15m
REL-1826 Updated prism limit for unblocked modes and wollaston limits for direct modes #time 20m
Removed some unecessary type declarations
Merge pull request #17 from cquiroz/feature/REL-1826

REL-1826: Reinstall the UNBLOCKED modes
REL-1436: Fix compareTo method of Alloc objects.
REL-1436: Changed Alloc from being an interval to using an interval.
REL-1436: Remove some obsolete code.