more fixes for Java 7 minimum version (#592)

* more fixes for Java 7 minimum version

* one more java 6 reference

* one more java 6 reference

Author: elharo

google-http-client-apache-legacy/pom.xml

@@ -17,7 +17,7 @@
         <artifactId>maven-javadoc-plugin</artifactId>
         <configuration>
           <links>
-            <link>http://download.oracle.com/javase/6/docs/api/</link>
+            <link>https://download.oracle.com/javase/7/docs/api/</link>
             <link>https://jar-download.com/artifacts/org.codehaus.jackson/jackson-core-asl/${project.jackson-core-asl.version}/documentation</link>
           </links>
           <doctitle>${project.name} ${project.version}</doctitle>

google-http-client-apache/pom.xml

@@ -17,7 +17,7 @@
         <artifactId>maven-javadoc-plugin</artifactId>
         <configuration>
           <links>
-            <link>http://download.oracle.com/javase/6/docs/api/</link>
+            <link>https://download.oracle.com/javase/7/docs/api/</link>
             <link>https://jar-download.com/artifacts/org.codehaus.jackson/jackson-core-asl/${project.jackson-core-asl.version}/documentation</link>
           </links>
           <doctitle>${project.name} ${project.version}</doctitle>

google-http-client/pom.xml

@@ -12,7 +12,7 @@
   <name>Google HTTP Client Library for Java</name>
   <description>
     Google HTTP Client Library for Java. Functionality that works on all supported Java platforms,
-    including Java 6 (or higher) desktop (SE) and web (EE), Android, and Google App Engine.
+    including Java 7 (or higher) desktop (SE) and web (EE), Android, and Google App Engine.
   </description>
 
   <build>

samples/dailymotion-simple-cmdline-sample/instructions.html

@@ -14,16 +14,15 @@ <h3>Browse Online</h3>
 
 <h3>Checkout Instructions</h3>
 
-<p><b>Prerequisites:</b> install <a href="http://java.com">Java 6</a>, <a
-  href="http://mercurial.selenic.com/">Mercurial</a> and <a
+<p><b>Prerequisites:</b> install <a href="https://www.java.com/en/">Java 7 or later</a>, <a
+  href="http://mercurial.selenic.com/">Mercurial</a>, and <a
   href="http://maven.apache.org/download.html">Maven</a>. You may need to set
 your <code>JAVA_HOME</code>.</p>
 
-<pre><code>cd <i>[someDirectory]</i>
-git clone https://github.com/googleapis/google-http-java-client
+<pre><tt>git clone https://github.com/googleapis/google-http-java-client
 cd google-http-java-client-samples/dailymotion-simple-cmdline-sample
 mvn compile
-mvn -q exec:java</code></pre>
+mvn -q exec:java</tt></pre>
 
 <h3>Setup Project in Eclipse 3.5/3.6</h3>