Note about Virtualbox incompatibilities

Update README.md

Create QUICK_START.md describing Vagrantfile usage

Provides links to software required to use the Vagrantfile.

Having media layer defined causes toggles to 'stick' rather than be momentary in my experience

Resetting keymap_default.c to origin/master not just my fork's master

Moving my layout to its own file, made plover layout file, restoring default keymap to its default status

Updated avr script and added notes to Vagrantfile

All dfu dependencies in place, multi-line syntax to make it easy to add/read

Adding update of vagrant VM every time it is booted

Adding Vagrantfile for easier compile environment setup

Added calculator shortcut button to numpad/symbol layer

Fixed Plover layer label and updated keymap

Added proper link back to Plover layout source

Added plover layer

Fixed button conflicts on mouse/media layer

Added note about avr-libc also being required at least for arch

Moving everything around, tap delays driving me nuts

Merge branch 'master' of github.com:dragon788/qmk_firmware_ez

Merge branch 'master' of github.com:jackhumbert/qmk_firmware

Conflicts:
	keyboard/ergodox_ez/keymaps/keymap_default.c

Merge branch 'master' of github.com:dragon788/qmk_firmware_ez

Conflicts:
	keyboard/ergodox_ez/keymaps/keymap_default.c