Bump to GitHub-API 1.50 (released version)

Change-Id: I785da3dd7c836ed36642c11972d129a3467d1938

github-oauth/pom.xml

diff --git a/github-oauth/pom.xml b/github-oauth/pom.xml
index 397c086..96bab29 100644
--- a/github-oauth/pom.xml
+++ b/github-oauth/pom.xml
@@ -107,7 +107,7 @@
     <dependency>
       <groupId>org.kohsuke</groupId>
       <artifactId>github-api</artifactId>
-      <version>1.50-SNAPSHOT</version>
+      <version>1.50</version>
     </dependency>
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>