Add DISCLAIMER file

Change-Id: Ia7a746502640a7e00b11b2b9b77eaaef9e3979f2
Reviewed-on: https://asterix-gerrit.ics.uci.edu/374
Reviewed-by: Ian Maxon <imaxon@apache.org>
Tested-by: Ian Maxon <imaxon@apache.org>
diff --git a/DISCLAIMER b/DISCLAIMER
new file mode 100644
index 0000000..45284ba
--- /dev/null
+++ b/DISCLAIMER
@@ -0,0 +1,10 @@
+Apache AsterixDB is an effort undergoing incubation at the Apache Software 
+Foundation (ASF), sponsored by the Apache Incubator PMC. 
+
+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.