Merge pull request #16 from cmpterman2/master

Fixed an issue where the controller UI wouldn't accept changes to the PID settings
Update build
Fix #17: Disable inputs from being editted until it's valid to change them.
Fix degrees symbol for integral input
Display Differential value in the web UI
Update binary7
Prevent Null pointer on shutdown
Re-enable the Duty Cycle box
Merge pull request #6 from DougEdey/master

Merge from master