Make arguments redo, subproject elimination (#1784)

* redo make args to use colons, better folder structuring system [skip ci]

* don't put spaces after statements - hard lessons in makefile development

* fix-up some other rules.mk

* give travis a chance

* reset KEYMAPS variable

* start converting keyboards to new system

* try making all with travis

* redo make args to use colons, better folder structuring system [skip ci]

* don't put spaces after statements - hard lessons in makefile development

* fix-up some other rules.mk

* give travis a chance

* reset KEYMAPS variable

* start converting keyboards to new system

* try making all with travis

* start to update readmes and keyboards

* look in keyboard directories for board.mk

* update visualizer rules

* fix up some other keyboards/keymaps

* fix arm board ld includes

* fix board rules

* fix up remaining keyboards

* reset layout variable

* reset keyboard_layouts

* fix remainging keymaps/boards

* update readmes, docs

* add note to makefile error

* update readmes

* remove planck keymap warnings

* update references and docs

* test out tarvis build stages

* don't use stages for now

* don't use stages for now

keyboards/preonic/preonic.c

@@ -1,4 +1,4 @@
-#include QMK_KEYBOARD_H
+#include "preonic.h"
 
 #ifdef ONEHAND_ENABLE
 __attribute__ ((weak))

keyboards/preonic/preonic.h

@@ -33,6 +33,7 @@
 	{ k40, k41, k42, k43, k44, k45, k46, k47, k48, k49, k4a, k4b } \
 }
 
+#define KEYMAP PREONIC_MIT
 #define LAYOUT_ortho_5x12 PREONIC_GRID
 
 #endif

keyboards/preonic/readme.md

@@ -11,6 +11,6 @@ Hardware Availability: [OLKB.com](https://olkb.com/preonic/), [Massdrop](https:/
 
 Make example for this keyboard (after setting up your build environment):
 
-    make preonic-default
+    make preonic:default
 
 See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.