Prepare 1.13.

Author: Capstan

README.md

@@ -26,7 +26,7 @@ Its features are:
 
 ## Versions
 
-The current version is **1.11**. See file `RELEASE-NOTES.md` for details of releases before 1.11.
+See file `RELEASE-NOTES.md` for details of releases before 1.11.
 
 ## Using it in your project
 

project.gradle

@@ -21,7 +21,7 @@
  * Project-specific settings. Unfortunately we cannot put the name in there!
  */
 group = "com.github.java-json-tools";
-version = "1.12";
+version = "1.13-SNAPSHOT";
 sourceCompatibility = JavaVersion.VERSION_1_7;
 targetCompatibility = JavaVersion.VERSION_1_7; // defaults to sourceCompatibility