Added MOD_TAP aliases for keymap.c readability.
Updated README to document said changes.
Added additional Dvorak layer to make using the CMD key easier on Macs.
* Adding my own keymaps to the following keyboards:
Planck, Preonic, Atreus, Ergodox
* Delete dvorak.png
Not reflective of my layout.
* Delete readme.md
file cleanup, removing file that doesn't apply to my layout.
* Delete old_keymap.c
file cleanup
* Delete README.md
file clean up.
* Delete README.md
file cleanup
* Delete keymap.c
file cleanup
* Changed behavior of _DVORAK layout's KC_RSFT to SFT_T(KC_ENT) for flexibility's sake.
Updated the rest of the keymap to reflect the current (as of 19:37 on 08 Aug 2018) default
layout and default makefile.
