Update: version bump to 0.9.0 (#1409)

* Update: version bump to 0.9.0

 * Version bump to 0.9.0
 * README.md update to add the new forum

* Fix: minor indexing problem

 * Solved indexing problem in README.md

Author: germanros1987

CHANGELOG.md

@@ -1,2 +1,5 @@
 ## Master
 
+## 0.9.0
+
+* Version bump to 0.9.0

README.md

@@ -12,7 +12,8 @@
     <a href="http://www.open3d.org/docs/release/index.html#python-api-index">Python API</a> |
     <a href="http://www.open3d.org/docs/release/cpp_api/index.html">C++ API</a> |
     <a href="http://www.open3d.org/docs/release/contribute.html">Contribute</a> |
-    <a href="https://www.youtube.com/watch?v=I3UjXlA4IsU">Demo</a>
+    <a href="https://www.youtube.com/watch?v=I3UjXlA4IsU">Demo</a> |
+    <a href="https://forum.open3d.org">Forum</a>
 </h4>
 
 Open3D is an open-source library that supports rapid development of software that deals with 3D data. The Open3D frontend exposes a set of carefully selected data structures and algorithms in both C++ and Python. The backend is highly optimized and is set up for parallelization. We welcome contributions from the open-source community.

src/Open3D/version.txt

@@ -1,4 +1,4 @@
 OPEN3D_VERSION_MAJOR 0
-OPEN3D_VERSION_MINOR 8
+OPEN3D_VERSION_MINOR 9
 OPEN3D_VERSION_PATCH 0
 OPEN3D_VERSION_TWEAK 0