Added detection of another instance of SIR running.
Added loading files from another SIR instance.
Development printing code removed.
Added CHANGELOG entry.
Added good and bad coding practices into documentation.
Documentation main page splited and moved to separated files.
Added test stub for RawGroupBox class.
Few small fixes.
Added testing tools in MessageBox class.
Added tests for RawGroupBox class.
RawGroupBox::checkDcrawPath() method refactoring.
Refactoring to MVC. Added RawGroupBoxView class.
Removed setting empty dcraw path string after browse cancel.
Refactoring to MVC. Added Settings class instance as model.
Fixed left arrow shortcut for previous image in PreviewDialog.
Removed defines.h file.
Refactoring SelectionGroupBox class to MVC.
Changed models to more specialized.
Extracted methods in OptionsDialog class.
Refactoring MetadataGroupBox class to MVC.