Code Maintenance

Reformats codebase with  regards to tabs, comments
and such.
Moves  some  functions  from the  Display  to  the
Strings module.

 On branch master

 Changes to be committed:
	modified:   Ltt/Display.pm
	modified:   Ltt/Json.pm
	modified:   Ltt/Plotting.pm
	modified:   Ltt/Ranking.pm
	modified:   Ltt/Statistics.pm
	modified:   Ltt/Strings.pm
	modified:   Ltt/Upload.pm
	modified:   ltt-rankings.pl
	modified:   ltt-rankings.txt
License

Adds license file.

 On branch master
 Your branch is ahead of 'origin/master' by 2 commits.

 Changes to be committed:
	new file:   LICENSE