renaming BUILD to build.txt
Readme update
OpenSSL license added
adding Nettle license
renaming license files
adding boost license
changing Nettle license
updating README file
adding Exiv2 license
docs: build description extended
gui: ImagesTreeView: using virtual function for calling rowsInserted instead of using connections
gui: ImagesTreeView: introducing rowsAboutToBeRemoved()
code format
updating build instructions
fix for issue #78
gui: ImagesViews: Data: forget() added
gui: ImagesViews: PositionsReseter::childrenRemoved() introduced
gui: ImagesViews: implementation of rowsInserted()
ImagesTreeView: adding protected section
ImagesTreeView: reacting on rowsAboutToBeMoved