Ease fixing buildsystem for unexpected current directories.

Drop outdated dependencies.

Various (attempted) crash fixes.

Remove global variable, move to Page field.

Log browser history in memory

Add 'pseudolinks' for tab history, apps, & bookmarks.

Extract data for 'pseudolinks', exposing more features.

Extensively refactor to use the CSS engine's counters implementation.

Upload Types modules, & useragent stylesheet with audio cues.

Prevent websites (and userstyles) from overriding the link audio cue.