Faster startup (because of faster event handler addition)
update vromerc example file
Merge pull request #300 from boris-petrov/faster-startup

Faster startup (because of faster event handler addition)
Ignore tags file
Add completion_items option

It supports the following options: history, bookmarks, search. Any could
be added and in any order and then results from completion will be
filtered and ordered accordingly. Example usage:
set completion_items=bookmarks,history,search
Fix Url.parent to work when URL ends with /
Pass tab from frontend to background as a property

Not as the last argument
Rename newtab to newTab
Export global functions in a different way
Do not add "http" to URLs as the site may be https
Minor refactoring
Add url and search-engine completion items
Save less information for last closed tab