This is for attaching additional keys to operator commands.
e.g. Add "f" to prefix/operator (evil-yank) "y" to get
"yf"
while still maintaining the other operator commands like "yy".
Move setup files into subdirectories. Move mode directories to modes subdir.
This will make it easy to specify a recipe in melpa that maintains the directory
structure. Add interactive functions to jump to .el and README files
See #170
