ENH: read center and not top center location for vector of angles
BUG: init m_Deramp in FrostImageFilter constructor
ENH: add Despeckle application
STYLE
ENH: add default value for pixel size to 1.
ENH: Mantis-764: check output directory for OutputFilenameParameter

--HG--
extra : rebase_source : 8127125e731c3716382e1b990235e16397f17c71
BUG: Mantis-973: fix includes order in UseOTB.cmake
BUG: Mantis-927: use compare-ogr for KML format
DOC: set version numbers for minor release
DOC: update release notes
Adding tag 4.2.1 to changeset af1ee118977e
DOC: set version numbers back to development version
ENH: move smoothing application to filtering directory

--HG--
rename : Applications/Utils/otbSmoothing.cxx => Applications/Filtering/otbSmoothing.cxx
ENH: add conductance parameter for anidifusion which was added recently in ITK filter
BUG: Mantis-974: keep the time step independant from the image spacing
BUG: Mantis-942: proper computation of opposite region
STYLE: simplify calls to GetParameterImage()
ENH: avoid hazardous physical point conversion
BUG: Mantis-942: fix computation of output image extent
BUG: wrong channel number