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Add proper date formats (to display week day)
Add option to carry Russian day names.
Add temporary task file
Add date_default_timezone_set() function.

It is to avoid warning before use of DateTime()
Failed attempt to add colors;

Make graph line ( graph.type = 'line'; ) instead of smoothedLine;

Make space under graph colored.
Add trend panel.
Add prototype of Weight::getTrendFor();

Fix typo in all.css;

Add rewrite rules for trend paths to .htaccess;

Add calculation of weight points for given trend path.