1.5.5 released

Fix the layout of the error window which was incorrect in some cases
Allow to define an array of classes to be accessible in the context of the JSScriptWrapper
Reduce the length of the error message if a Groovy script does not implement the script interface
Reduce the length of the error message if a Python script does not implement the script interface
Reduce the length of the error message if a Ruby script does not implement the script interface
Allow the library to be used in any ClassLoader architecture
Add a setOptimizationLevel(String level) method to the script wrapper to allow to set the optimization level of scripting languages which have this kind of option
Add a set setCompilerIsStrict(boolean) method in the JSScriptWrapper to throw an exception if a method defined in the interface is not implemented