[#42,tools/view][s]: dp viewer now has human usable html page where you can paste a url.

* Also refactor so that the data package view template is in macro and reusable in both tools viewer and main view.
[routes][xs]: set title for standards page.
[css][s]: tweak view layout and css.

* Revert whitespace fixes in a60e00d0e3f392f3b71d99df5d2f571a4d5cfb63 as causing problems with css
* Tweak sidebar and line heights