Update README.md
Added option to use hjkl keys
Names
Update README.md
Added support for custom commands
Fixed plugin for GVIM
Prevent errors due to changes in compatibility options
Doc
Accept alphanumeric keys
Much smarter configuration
Better naming
Support esc_mappings option
Fixed bug with esc_mappings
Fixed Alt-Shift-O mapping
Shorter mappings
Modified README
Simplify plugin interface