Creates a layouts/ folder for keymaps shared between keyboards (#1609)

* include variables and .h files as pp directives

* start layout compilation

* split ergodoxes up

* don't compile all layouts for everything

* might seg fault

* reset layouts variable

* actually reset layouts

* include rules.mk instead

* remove includes from rules.mk

* update variable setting

* load visualizer from path

* adds some more examples

* adds more layouts

* more boards added

* more boards added

* adds documentation for layouts

* use lowercase names for LAYOUT_

* add layout.json files for each layout

* add community folder, default keymaps for layouts

* touch-up default layouts

* touch-up layouts, some keyboard rules.mk

* update documentation for layouts

* fix up serial/i2c switches

1 files changed, 15 insertions, 0 deletions

diff --git a/keyboards/ergodone/keymaps/default/readme.md b/keyboards/ergodone/keymaps/default/readme.md
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+# ErgoDox EZ Default Configuration
+
+## Changelog
+
+* Dec 2016:
+  * Added LED keys
+  * Refreshed layout graphic, comes from http://configure.ergodox-ez.com now.
+* Sep 22, 2016:
+  * Created a new key in layer 1 (bottom-corner key) that resets the EEPROM.
+* Feb 2, 2016 (V1.1): 
+  * Made the right-hand quote key double as Cmd/Win on hold. So you get ' when you tap it, " when you tap it with Shift, and Cmd or Win when you hold it. You can then use it as a modifier, or just press and hold it for a moment (and then let go) to send a single Cmd or Win keystroke (handy for opening the Start menu on Windows).
+
+This is what we ship with out of the factory. :) The image says it all:
+
+![Default](https://i.imgur.com/Be53jH7.png)
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