Added cellvalueshader.hpp to #702
Created branch for ticket #702
Implemented ticket #718 "Enable Diffs for two different files"
Implemented ticket #659 "Improve restore functionality of VCS"
Implemented ticket #726 "Support comments in terminal"
Implemented ticket #753 "Simplify time functions"
Implemented ticket #739 "Improve 'bad_alloc' exception message"
Implemented ticket #742 "Support ZYGO dat files"
Implemented ticket #746 "Add string and table methods to the symbols tree"
Implemented ticket #747 "Create new table methods"