graduation: remove incubator disclaimer & update dev list info (#189)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 12b89b1..b75d752 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -54,7 +54,7 @@
 ### Discussion
 
 Please use the project's developer email list to engage our community:
-[dev@openwhisk.incubator.apache.org](dev@openwhisk.incubator.apache.org)
+[dev@openwhisk.apache.org](dev@openwhisk.apache.org)
 
 In addition, we provide a "dev" Slack team channel for conversations at:
 https://openwhisk-team.slack.com/messages/dev/
diff --git a/DISCLAIMER.txt b/DISCLAIMER.txt
deleted file mode 100644
index 4874b6d..0000000
--- a/DISCLAIMER.txt
+++ /dev/null
@@ -1 +0,0 @@
-Apache OpenWhisk Client Js 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.
diff --git a/README.md b/README.md
index 4c61d03..e3720f7 100644
--- a/README.md
+++ b/README.md
@@ -680,6 +680,3 @@
 *Generated data in stored in the `.nyc_output` directory.*
 
 Running the `npm run coverage:report` command will generate the output reports.
-
-# Disclaimer
-Apache OpenWhisk JavaScript Client Library 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.