zubr - an optimizer generator tool producing Java code in Perkun 0.1.6

I made some improvements for zubr and wrote several examples. They can be found in the "examples" folder. Zubr comes as a companion tool in the Perkun package:

https://sourceforge.net/projects/perkun/

The examples are:

• example11_simple.zubr
• example12_with_frame.zubr 
• example13_with_optimizer_thread.zubr
• example14_my_optimizer.zubr
• example15_get_input.zubr
• example16_on_error_in_populate_belief_for_consequence.zubr
• example17_get_model_probability.zubr
• example18_simple_automaton.zubr
• example19_get_payoff.zubr
• example20_hidden_variables.zubr
• example21_set_apriori_belief.zubr

 They are ordered in the increasing complexity. I recommend running the Java code produced by them. In order to try out an example (say the last one) run:

zubr example21_set_apriori_belief.zubr > MyOptimizer.java

Then create a Java application project (for example in NetBeans), put the file MyOptimizer.java in the source folder (package "optimizer") and enjoy a simple optimizer generated by zubr!

I decided that only the Perkun values and variables are passed in the zubr specification - the apriori probabilities and the model probabilities are passed in pure Java (there is no special zubr syntax for them). It is better like that.