Upgrade Tapestry to 5.4.3, use JDK 8 (#2745)

* Upgrade Tapestry version

* Update pom.xml

* Set language level to 1.8

frameworks/Java/tapestry/README.md

@@ -17,7 +17,7 @@ Use [Hibernate](https://tapestry.apache.org/using-tapestry-with-hibernate.html)
 ## Versions
 
 * [Java OpenJDK 1.7.0_09](http://openjdk.java.net/)
-* [Tapestry 5.4.2](http://tapestry.apache.org)
+* [Tapestry 5.4.3](http://tapestry.apache.org)
 * [Hibernate 3.6.3](http://www.hibernate.org/)
 * [MySQL 5.5.29](http://dev.mysql.com/)
 * [Maven 2.2.1](https://maven.apache.org/)

frameworks/Java/tapestry/hello/pom.xml

@@ -98,8 +98,8 @@ of testing facilities designed for use with TestNG (http://testng.org/), so it's
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>2.3.2</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                     <optimize>true</optimize>
                 </configuration>
             </plugin>
@@ -152,7 +152,7 @@ of testing facilities designed for use with TestNG (http://testng.org/), so it's
     </repositories>
 
     <properties>
-        <tapestry-release-version>5.4.2</tapestry-release-version>
+        <tapestry-release-version>5.4.3</tapestry-release-version>
         <servlet-api-release-version>2.5</servlet-api-release-version>
         <testng-release-version>5.14.10</testng-release-version>
         <easymock-release-version>3.0</easymock-release-version>