Updated full changelog.
Merge nocopula@3595
Removed types UnsignedLong, IndexType. Deprecated ResourceMap::SetAsUnsignedLong|GetAsUnsignedLong. distcheck ok.
BRANCH: created branch barbier
BRANCH: created branch haddad
BRANCH: created branch lebrun
BRANCH: created branch schueller
Added Drawable|Graph::_repr_svg_. distcheck ok.
Improved the presentation of the draw() method in the NumericalMathEvaluationImplementation class.
Improved the volume computation in the Mesh class.
Improved the spatial mean computation in the Field class.
Removed some UnsignedLong in the code.

distcheck ok.
Removed unused class MPI.
SRC indices can be >1 with improperly sampled variance.
Added a missing attribute (the mesh dimension) to the DynamicalFunction class and all the related class (TemporalFunction, SpatialFunction etc.)
Fixed a confusion in the CauchyModel and ExponentialModel classes: the scale was indeed a rate.
Added the ExponentiallyDampedCosineModel class.
Added the asDeformedMesh() method to the Field class.
Added a parallel implementation of the addition and soustraction operators in the NumericalSample class.
Made some improvements to the CompositeProcess and TemporalNormalProcess classes.

distcheck ok.
Removed deprecated call to the discretizeCovariance() method.

distcheck ok.
Fixed a bug in the JacobiFactory when using the probabilistic parameterization instead of the analytic one.

distcheck ok.
Fixed a bug linked to the conversion from PyObject* to NumericalPoint
This bug is due to leak checks and bad exception catching within the
typemap(in)
distcheck ok
Overloaded computePDFGradient and computeCDFGradient methods of Distribution
class. Ongoing work
In order to overload DistributionImplementation::computeCDFGradient, all class that inherit from this last one should use or redefine the method, not replacing it. The using DistribuionImplementation::computeCDFGradient is added for that reason
The same applies to the computePDFGradient
distcheck ok
Added a generic implementation of the computePDFGradient() and computeCDFGradient() methods to the DistributionImplementation class.

distcheck ok.
Removed useless const qualifier for return type.
Fixed some variable re-declarations, fixes a bug in LinearCombinationEvaluationImplementation. distcheck ok.