LOW: Use of "append" instead of "+" with StringBuilder
MEDIUM: Fixed panel inspector with mixed up entries
MEDIUM: Fixed incorrect overrides and missing calls to super
MEDIUM: Fixed deletion of FlexoModelObjectReference
LOW: Added warning when using incorrect editor
LOW: default insets is now 0 in all cases.
IMPORTANT: Implemented possibility to remove imported projects
LOW: Made all edges black because the concept of induced edges is no
longer needed nor understandable.
LOW: Added tooltips in table
LOW: Replaced middle symbol by end symbol
MEDIUM: Prevented NPE
LOW: Added missing repaint
IMPORTANT: Fixed severe issue with connector painting
LOW: Added allows null control for FIBFont inspector
LOW: inspector changes for comment box
Merge branch '1.5.1' of ssh://git@github.com/agilebirds/openflexo into 1.5.1
LOW: inspector item sort for BoundingBox and removing checkbox to Font
selector
LOW: inspector modif (OPENFLEXO 592 moving "representation role" of
gateway from advanced to basic menu)
LOW: localisation of doc editor inspectors
IN PROGRESS - issue OPENFLEXO-594: Layout gets screwed with new version 

Fixed intersection between a polygon and a line (and thus also with
half-plane)