All this stuff have been moved into Monteverdi
 To achieve this goal, I removed:
 - Utilities/FLTK
 - Code/Gui
 - Code/Visu (old visualization framework)
 - Code/Visualization
 - and their relative tests and examples
Some modifications have been also done into some CMakelists.txt to remove all links to visualization

BUG: Remove old Modules/Numerics/Optimizersv4/src folder from internal ITK, already removed from ITK 4.5.0 trunk

ENH: Replace use of IsADirName and IsAFileName methods of otbSystem.h by similar ones of itksys/SystemTools.hxx

ENH: Added GetInput() methods to QtWidgetFooParameter classes; Set non-initializerd pointers to NULL on constructor header.

ENH: Replace use of SetToLower and SetToUpper methods of otbSystem.h by similar ones of itksys/SystemTools.hxx

ENH: Replace use of GetPathName, GetShortFileName and GetExtension methods of otbSystem.h by similar ones of itksys/SystemTools.hxx

I noticed this issue when I installed cuda which depends on gold kinker on
ubuntu 12.04:

http://doc.ubuntu-fr.org/cuda#pre-requis

I achieve in compiling external project to OTb with this linker by adding
explicit link to dl libs in otbossim library.

I did not dig too much into this problem but it may be related to modification
in DSO linking documented here:

https://wiki.debian.org/ToolChain/DSOLinking#Onlylinkwithneededlibraries

OTB does not support anymore classes which use liblas in version 4.0:

-otbPointSetFileReader

You can still access to these classes, related tests and examples in OTB 3.20.