Merge branch 'release-0.3.1' into develop
Added debug option
Richer messages about Infinite loop error
Temporary turned off the delayed communication execution
Merge branch 'feature-debug-option' into develop

Conflicts:
	bin/aqopa-console.py
Fix WhileInstruction - fixed error in __unicode__
Merge branch 'fix-model' into develop
Improved summary report formatting
Merge branch 'improvement-summary-report' into develop
Changed options. Whole model divided into model, metrics and config file. Option for saving states.
Distinguished parser error types
Merge branch 'feature-files' into develop
Changed package name from qopml.interpreter to aquopa
Changed name to aqopa
Merge branch 'change-package-name' into develop
Added main frame and model loading.
Base GUI version. GUI for simulation preparation.
GUI for time analysis results (for one version) - unfinished.
Changed GUI to tabs (wx.Notebook). Added GUI for results for one version of model.
Merge branch 'gui' into develop