Changing Movement Keys [Feature Request]

I went through the code for a bit. 
j is mapped to cursor_down and k is mapped to cursor_up. 
Currently these are not commands that can be found in the command list giving out an error. 

I want to remap hjkl to jkl;, it is the keycommands that I have configured everwhere else and are easier for me to use. 

Can a feature be added to configure movement in the config file. 