Adding support for printing to work with a shared volume (cloud envir…

…onment)

Adding documentation

docs/installation.rst

@@ -124,3 +124,9 @@ Once ImageMagick is installed (and Ghostscript) then the spring configuration ne
 Since the ImageMagick support is a commonly requested configuration there is an IMAGEMAGICK artifact prebuild with the correct configuration.  To use this artifact change your maven dependency from: print-servlet-1.2-SNAPSHOT to print-servlet-1.2-SNAPSHOT-IMG-MAGICK (you will likely have to change the 1.2-SNAPSHOT portion to the version of mapfish that you are using).
 
 By default ImageMagick will try to find the convert tool in /usr/bin/convert.  You will want to find the path to your convert tool and update imagemagick-spring-application-context-override.xml if that file is included in your build, or mapfish-spring-application-context.xml if you manually changed the mapfish-spring-application-context.xml file to include the imagemagick configuration.
+
+
+Defining temp work directory for Printing module
+----------------------
+
+MAPFISH_PDF_FOLDER : optional environment variable to define the directory path for storing printouts generated by the printing module. When not defined default value is from MapPrinterServlet context

docs/upgrade.rst

@@ -4,6 +4,7 @@ Upgrade
 Version 2.3.2
 -------------
 
+* Support for printing in a cloud environment and in an environment without sticky sessions : generates a requested printout metadata json file and stores it in the tempDir. With this information peristed, there is no need for sticky sessions and printing module can be used in a cloud environment with shared volume.
 Under development.
 
 Version 2.3.1
@@ -69,4 +70,4 @@ Release notes:
 Developers using mapfish-print-v2 as a library are adivsed:
 
 * packages `com.itextpdf.text` change to `com.lowagie.text`
-* `com.itextpdf.text.BaseColor` changes to `java.awt.Color`
+* `com.itextpdf.text.BaseColor` changes to `java.awt.Color`