Separate "Quit" and "Quit & Shutdown" items
add context menu to copy text/links
add notification if twisterd is not run
hide context menu after click on reload
fix possible duplicating of listener
Merge pull request #2 from dryabov/master

Separate "Quit" and "Quit & Shutdown" items in tray
Add context menu to copy text/links
Add notification if twisterd is not run