removed margins (waste of space)
made magnet link popover wider
don't use deprected session::listen_on
Merge branch 'master' of github.com:benwaffle/gtorrent-c
Revert "removed margins (waste of space)"

This reverts commit 2626cc82a50652987f5fa5e6b4015be2e3f05684.
Merge pull request #4 from benwaffle/master

small improvements