allow for open bottom blocks
improved open bottom
refactoring class hierarchy
adding doc of device specific values; selector for type of content
moving eventing to top level object
moving width and height to ancestor
moving cx and cy up
moved topright, etc to ancestor object
created Poit interface
protection from global pollution
reorganized dependencies as seperate objects
using new model for managing dependencies
added Diagram class that organizes the Display of other blocks
unexposed no longer needed interfaces
adjusting default values for presentation
using Diagram construct
fix mirroring
now with proper mirroring
only move numeric width slider when the relevant radio box is checked
assorted bug fixes in form / view links
adapt widht of blocks to angle of display
fix and simplify code for adjust handle