edit mode, most commands available via right click, improved ctrl-f/f3/shift-f3, added match color

• added edit mode for easy searching within the log- just type something, it will take you there!
• right click - do pretty much everything with right click. This especially shines when you select some text, right click - you can create a filter from your selection!
• improved ctrl-f (if something selected in the view, use that)
• improved f3/shift-f3 - if user typed anything in the view, use that
• added "match color" - which can color only your filter match (not the whole line). This is synchronized with the details (in case the message is too big to fit), and the current edited line
• solved minor bugs