Hide #dependencies-graph on ESC

If user presses ESC key, the dependencies graph widget should close.
Update cpan.js
Update cpan.js
add a link to the author's test matrix
Display Pauseid on hover & Round corners.
Add plusser info.
Display hover minor change.
Merge pull request #1181 from Talina06/update-plussers

Display PauseId on hover & Round corners.
Merge pull request #1180 from Talina06/update_news

Add plusser info to News.md.
Merge pull request #1178 from book/book/author-matrix

add a link to the author's test matrix
Merge pull request #1177 from chankeypathak/patch-1

Hide #dependencies-graph on ESC
Moves the plusser icon title to the img tag.
Store user sorting type in localStorage and set as default
Set id for each table
Set timeout to wait for new url before store sort param
Add localStorage prefix and loop table id to get localStorage
Delay loading of dependency graph until it is shown.

When the modal is shown, then we set the "src" attribute
of the iframe, which causes the browser to load the content.
We only do this the first time the modal is shown, because
the src will be the same for any given page. Fixes GH #1179.
Update "About" to mention the view and mirror of CPAN
Reindent the second half of the previously first paragraph
More readable code, perhaps.