ATLAS-962 Include Apache Incubator disclaimer text on website (yhemanth via shwethags)

docs/src/site/twiki/index.twiki

@@ -61,3 +61,11 @@ allows integration with the whole enterprise data ecosystem.
 ---+ Licensing Information
 
 Atlas is distributed under [[http://www.apache.org/licenses/LICENSE-2.0][Apache License 2.0]].
+
+---+ Disclaimer
+
+Apache Atlas is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache
+Incubator. Incubation is required of all newly accepted projects until a further review indicates that the
+infrastructure, communications, and decision making process have stabilized in a manner consistent with other
+successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability
+of the code, it does indicate that the project has yet to be fully endorsed by the ASF.

release-log.txt

@@ -35,6 +35,7 @@ ATLAS-409 Atlas will not import avro tables with schema read from a file (dosset
 ATLAS-379 Create sqoop and falcon metadata addons (venkatnrangan,bvellanki,sowmyaramesh via shwethags)
 
 ALL CHANGES:
+ATLAS-962 Include Apache Incubator disclaimer text on website (yhemanth via shwethags)
 ATLAS-958 Add licenses for dashboard dependencies (kevalbhatt18 via shwethags)
 ATLAS-474 Server does not start if the type is updated with same super type class information (dkantor via shwethags)
 ATLAS-621 Introduce entity state in Id object (shwethags)