removed unnecessary embedded image
made embedded image static
fixed null pointer error
now blocking enter key when text input is empty
Added translate option.
Improved behavior of grouped and group setters.
fixed bug with null vs "null"
fixed label positioning bugs.
fixed crash when hash map contained non-columns
Cleaned up GUI controls. Made zoom/pan buttons bigger. Replaced zoom
controls scale property with zoom slider height.
fixed null pointer errors
Fixed title bar display bugs.
Embedded images are now static.
Title bar buttons are now easier to press (hidden border catches mouse).
Invisible resize border is now drawn exactly to the pixel.
Code cleanup.