+ minor changes in docs
+ fix other problems with Mesh Dialog:
1) at mesh edition, old hypothesis remain assigned after playing with
Mesh Type and Hypo Sets (change is in isSelectedHyp())
2) When a 3D algo is unset due to change of Mesh Type, its hypotheses remain
assigned and a new hyp can be created
memory leaks, bug in import 1D for cracks
M src/SMDS/SMDS_UnstructuredGrid.cxx
M src/SMESH/SMESH_MeshEditor.cxx
M src/SMESH/SMESH_MesherHelper.cxx
M src/SMESHUtils/SMESH_MeshAlgos.cxx
M src/SMESHUtils/SMESH_MeshAlgos.hxx
M src/SMESHUtils/SMESH_Octree.hxx
M src/SMESHUtils/SMESH_Tree.hxx
M src/SMESH_PY/smeshstudytools.py
M src/StdMeshers/StdMeshers_Import_1D.cxx