Update version in README to 1.5

Author: alicederyn

README.md

@@ -370,12 +370,12 @@ Build tools and IDEs
 
 ### javac
 
-Download [freebuilder-1.4.jar][] and add it to the classpath (or
+Download [freebuilder-1.5.jar][] and add it to the classpath (or
 processorpath, if you supply one) on the command line. If [Guava] is
 available, FreeBuilder will use it to generate cleaner, more
 interoperable implementation code (e.g returning [immutable collections]).
 
-[freebuilder-1.4.jar]: http://repo1.maven.org/maven2/org/inferred/freebuilder/1.4/freebuilder-1.4.jar
+[freebuilder-1.5.jar]: http://repo1.maven.org/maven2/org/inferred/freebuilder/1.5/freebuilder-1.5.jar
 [immutable collections]: https://github.com/google/guava/wiki/ImmutableCollectionsExplained
 
 ### Maven
@@ -387,7 +387,7 @@ Add the `@FreeBuilder` artifact as an optional dependency to your Maven POM:
   <dependency>
     <groupId>org.inferred</groupId>
     <artifactId>freebuilder</artifactId>
-    <version>1.4</version>
+    <version>1.5</version>
     <optional>true</optional>
   </dependency>
 </dependencies>
@@ -401,7 +401,7 @@ interoperable implementation code (e.g returning [immutable collections]).
 Add the following lines to your dependencies:
 
 ```
-compile 'org.inferred:freebuilder:1.4'
+compile 'org.inferred:freebuilder:1.5'
 ```
 
 If [Guava] is available, FreeBuilder will use it to generate cleaner, more
@@ -411,21 +411,21 @@ interoperable implementation code (e.g returning [immutable collections]).
 
 _Condensed from [Eclipse Indigo's documentation][]._
 
-Download [freebuilder-1.4.jar][] and add it to your project. Select it,
+Download [freebuilder-1.5.jar][] and add it to your project. Select it,
 right-click and choose **Build path > Add to Build path**.
 
 In your projects properties dialog, go to **Java Compiler > Annotation
 Processing** and ensure **Enable annotation processing** is checked.
 Next, go to **Java Compiler > Annotation Processing > Factory Path**, select
-**Add JARs**, and select `freebuilder-1.4.jar`.
+**Add JARs**, and select `freebuilder-1.5.jar`.
 
 [Eclipse Indigo's documentation]: http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.jdt.doc.isv%2Fguide%2Fjdt_apt_getting_started.htm
 
 ### IntelliJ
 
 _Condensed from the [IntelliJ 14.0.3 documentation][] and [Auto Issue #106][]._
 
-Download [freebuilder-1.4.jar][], add it to your project, right-click it
+Download [freebuilder-1.5.jar][], add it to your project, right-click it
 and select **Use as Project Library**.
 
 In your Settings, go to **Build, Execution, Deployment > Compiler > Annotation