Prefer const (#3002)
                
                  
...
                
                
                
                  * added prefer-const rule to .eslintrc
* eslint const autofixes
* manual let to const changes; lint free;
* added brace style 'allman' to eslintrc
* brace style, comment fixes and default arg
* brace style fixes
* more brace styles
* Point default args
* Point brace styles
* Observable Point default args
* more brace styles
* jsdoc comment style
* brace style
* brace styles and small jsdoc fix
* brace styles
* removed unneeded eslint inline comment
* brace styles; lint free
                
                  
                  
                    Steffen Bär
                    authored 
  
    
      on 24 Sep 2016
    
  
                    
                  
                  Chad Engler
                  committed 
  
    
      on 24 Sep 2016