DOC : update release notes

RELEASE_NOTES.txt

+OTB-v.6.2.0 - Changes since version 6.0.0 (October th, 2017)
+----------------------------------------------------------
+* Request for Changes (http://wiki.orfeo-toolbox.org/index.php/Requests_for_Changes):
+  *Request for Changes-91: Better error messages (adopted, merged)
+  *Request for Changes-92: Build remote modules as standalone cmake projects (adopted, merged)
+  *Request for Changes-93: Update third party versions in Superbuild for 6.2 (adopted, merged)
+  *Request for Changes-94: CookBook licensed under cc-by-sa (adopted, merged)
+  *Request for Changes-95: Compile OTB with C++14 by default (adopted, merged)
+  *Request for Changes-96: Long help in otbcli (adopted, merged)
+  *Request for Changes-97: KMeansClassification reimplemented (adopted, merged)
+  *Request for Changes-98: Upgrade Monteverdi dependency from QWT 5 to QWT 6 (adopted, merged)
+  *Request for Changes-99: Refactor ExtractROI application (adopted, merged)
+  *Request for Changes-100: Add external soil file to Sail model (adopted, merged)
+  *Request for changes-102: Extend MachineLearningModel sample and target types (adopted, merged)
+  *Request for changes-103: Improve OTB Applications documentation (part 1) (adopted, merged)
+  *Request for changes-105: Simplify logging of composite applications (adopted, merged)
+  *Request for changes-106: All-in-one LSMS application (adopted, merged)
+  *Request for changes-107: Refactor Convert application (adopted, merged)
+  *Request for changes-108: Make OTB package great again (adopted, merged)
+  *Request for changes-109: Refactor PixelValue application (adopted, merged)
+  *Request for changes-111: SuperBuild dependencies additions for GDAL (adopted, merged)
+  *Request for changes-112: New-functor-filters (adopted, merged)
+  *Request for changes-114: Add Daniel McInerney as a new committer (adopted)
+  *Request for changes-115: Refactoring of DownloadSRTMTiles (adopted, merged)
+
+* Bugfixes :  
+  * Monteverdi
+    * 0001432: RGE Alti files inverted on Monteverdi
+    * 0001431: RGE Alti files inverted on Monteverdi
+
+  * OTB-Qgis
+    * 0001445: Mean shift segmentation ignoring mask OTB QGIS
+
+  * Orfeo Toolbox (OTB)
+    * 0001446: Write mode on the SampleExtraction application
+    * 0001444: cmake fails if OTB_DATA_LARGEINPUT_ROOT is set and OTB_DATA_ROOT is not set
+    * 0001443: Fails to build with cmake 3.9.0
+    * 0001440: Need to force string cast on SetParameterString method in python
+    * 0001439: GUI of ComputeOGRLayersFeaturesStatistics and OGRLayerClassifier crash on certain shape files
+    * 0001438: Input Value Type of Classification apps
+    * 0001420: Change layer name in Monteverdi has no effect
+    * 0001407: In TrainImagesClassifier, field selection gets reset all the time
+
+  * OTB-Packaging
+    * 0001404: OTB xdk 5.10.1 is not able to compile a simple program on a Ubuntu 16.04 VM
+
+  * OTB-applications
+    * 0001441: Error in param in template otbTrainLibSVM.txx
+
+
+
+
 OTB-v.6.0.0 - Changes since version 5.10.1 (May 2th, 2017)
 ----------------------------------------------------------