* Add C-u and C-d to pdf-view-mode-map
C-u and C-d will trigger respectively:
- pdf-view-scroll-down-or-previous-page
- pdf-view-scroll-up-or-next-page
in order to reflect evil/vim C-u and C-d.
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