Initial project using polymer
Added calculator buttons, basic styling
Added special buttons + simple eval for calculation
Added valid button checking, showing error in result
Added keypress handler, including enter. Bug fix for key validation returning undefined
Added backspace handling, better handling for getting keycode
Calculate root based on equation instead of result, changed output to only display either equation or result
Improved delete functionality, allow brackets for input, more styling
Added ellipsis for overflow, dark/light theme styling
Changed square root to unicode symbol