Minor: fix version of maven-deploy-plugin, fix pom warnings

Author: ilya-g

kotlinx-coroutines-async-example-ui/pom.xml

@@ -32,7 +32,7 @@
         <dependency>
             <groupId>org.jetbrains.kotlinx</groupId>
             <artifactId>kotlinx-coroutines-async</artifactId>
-            <version>${version}</version>
+            <version>${project.version}</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>

kotlinx-coroutines-rx-example/pom.xml

@@ -51,7 +51,7 @@
         <dependency>
             <groupId>org.jetbrains.kotlinx</groupId>
             <artifactId>kotlinx-coroutines-rx</artifactId>
-            <version>${version}</version>
+            <version>${project.version}</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>

pom.xml

@@ -120,6 +120,11 @@
                     <artifactId>maven-release-plugin</artifactId>
                     <version>2.5.2</version>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-deploy-plugin</artifactId>
+                    <version>2.8.2</version>
+                </plugin>
             </plugins>
         </pluginManagement>