Import some update from 0.92 for menu

Import some menu update from 0.92
Add sdrefresh global function in UIDisplay class to control usage
Fix Y_max Length as it hit border

Decrease Y_max Length  as at least it hit border on 2.0
are size different between 1.0 and 2.0 for Y max ?
Fix homing speed and position when doing pause

When doing pause during printing nozzle is set at maxfeedrate to right
corner, decrease the speed to homingFeedrate and also if it is possible
put bed 10 mm lower to avoid to hit anything, as position is memorized
it is ok
Fix menu issue when first item is hidden by filter

When first item of menu is hidden by filter - the selector is not shown
and menu can go out of scope
Fix Compilation error

Fix Compilation error .....
Fix menu stop command do not switch off temp

Because commands are on pipe even if command to cooldown is sent some to
heat can come at begining of printing so add a timer to allow only
cooling down and no heat during 3s when cooldown command is requested
Merge pull request #11 from luc-github/davinci

Merge from luc-github