added display of calibrated screen center
updated values for warnings on temperatures, undid trial fix to plotting window
added proper names to plot windows
disabled follow button on plotcontroller
number formatter now changes text color based on background color for better readability.
fixes, plotting should now be stable as it is limited to amount of points it can handle
fix to updated text becoming grey, updated calibrated values, updated to submodule SAS
updated to submodule SAS
Merge pull request #84 from ehsteve/master

Bringing upstream up to date