[maven-release-plugin] prepare release async-http-client-project-2.0.0-alpha21

Author: slandelle

client/pom.xml

@@ -2,7 +2,7 @@
 	<parent>
 		<groupId>org.asynchttpclient</groupId>
 		<artifactId>async-http-client-project</artifactId>
-		<version>2.0.0-SNAPSHOT</version>
+		<version>2.0.0-alpha21</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>async-http-client</artifactId>

extras/guava/pom.xml

@@ -2,7 +2,7 @@
     <parent>
         <groupId>org.asynchttpclient</groupId>
         <artifactId>async-http-client-extras-parent</artifactId>
-        <version>2.0.0-SNAPSHOT</version>
+        <version>2.0.0-alpha21</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>async-http-client-extras-guava</artifactId>

extras/jdeferred/pom.xml

@@ -18,7 +18,7 @@
   <parent>
     <artifactId>async-http-client-extras-parent</artifactId>
     <groupId>org.asynchttpclient</groupId>
-    <version>2.0.0-SNAPSHOT</version>
+    <version>2.0.0-alpha21</version>
   </parent>
   <artifactId>async-http-client-extras-jdeferred</artifactId>
   <name>Asynchronous Http Client JDeferred Extras</name>

extras/pom.xml

@@ -2,7 +2,7 @@
     <parent>
         <groupId>org.asynchttpclient</groupId>
         <artifactId>async-http-client-project</artifactId>
-        <version>2.0.0-SNAPSHOT</version>
+        <version>2.0.0-alpha21</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>async-http-client-extras-parent</artifactId>

extras/registry/pom.xml

@@ -2,7 +2,7 @@
 	<parent>
 		<groupId>org.asynchttpclient</groupId>
 		<artifactId>async-http-client-extras-parent</artifactId>
-		<version>2.0.0-SNAPSHOT</version>
+		<version>2.0.0-alpha21</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>async-http-client-extras-registry</artifactId>

extras/rxjava/pom.xml

@@ -3,7 +3,7 @@
     <parent>
         <artifactId>async-http-client-extras-parent</artifactId>
         <groupId>org.asynchttpclient</groupId>
-        <version>2.0.0-SNAPSHOT</version>
+        <version>2.0.0-alpha21</version>
     </parent>
     <artifactId>async-http-client-extras-rxjava</artifactId>
     <name>Asynchronous Http Client RxJava Extras</name>

extras/simple/pom.xml

@@ -3,7 +3,7 @@
     <parent>
         <artifactId>async-http-client-extras-parent</artifactId>
         <groupId>org.asynchttpclient</groupId>
-        <version>2.0.0-SNAPSHOT</version>
+        <version>2.0.0-alpha21</version>
     </parent>
     <artifactId>async-http-client-extras-simple</artifactId>
     <name>Asynchronous Http Simple Client</name>

pom.xml

@@ -9,7 +9,7 @@
 	<groupId>org.asynchttpclient</groupId>
 	<artifactId>async-http-client-project</artifactId>
 	<name>Asynchronous Http Client Project</name>
-	<version>2.0.0-SNAPSHOT</version>
+	<version>2.0.0-alpha21</version>
 	<packaging>pom</packaging>
 	<description>
         The Async Http Client (AHC) library's purpose is to allow Java