g-s 3.10 compatibility (WIP)
Fix slider signals
Fix aggregate menu integration for 3.10

Signed-off-by: Saggi Mizrahi <ficoos@gmail.com>
Merge pull request #139 from ficoos/g-s-3.10

Fix aggregate menu integration for 3.10
Rework layout for g-s 3.10

Remove compability with older versions
Update README