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

1 files changed, 7 insertions, 8 deletions

diff --git a/docs/feature_layouts.md b/docs/feature_layouts.md
index 4d75270dc..5763b7380 100644
--- a/docs/feature_layouts.md
+++ b/docs/feature_layouts.md
@@ -43,15 +43,15 @@ The folder name must be added to the keyboard's `rules.mk`:
 
     LAYOUTS = 60_ansi
 
-`LAYOUTS` can be appended in the subproject's `rules.mk`:
+`LAYOUTS` can be set in any keyboard folder level's `rules.mk`:
 
-    LAYOUTS += 60_iso
+    LAYOUTS = 60_iso
 
-but the `LAYOUT_<layout>` variable must be defined in `<subproject>.h` as well.
+but the `LAYOUT_<layout>` variable must be defined in `<folder>.h` as well.
 
 ## Tips for making layouts keyboard-agnostic
 
-Instead of using `#include "planck.h"`, you can use this line to include whatever `<keyboard>.h` (`<subproject>.h` should not be included here) file that is being compiled:
+Instead of using `#include "planck.h"`, you can use this line to include whatever `<keyboard>.h` (`<folder>.h` should not be included here) file that is being compiled:
 
     #include QMK_KEYBOARD_H
 
@@ -61,17 +61,16 @@ In your config.h, you can also use this variable to include the keyboard's `conf
 
 If you want to keep some keyboard-specific code, you can use these variables to escape it with an `#ifdef` statement:
 
-* `KEYBOARD_<keyboard>`
-* `SUBPROJECT_<subproject>`
+* `KEYBOARD_<folder1>_<folder2>`
 
 For example:
 
 ```c
 #ifdef KEYBOARD_planck
-    #ifdef SUBPROJECT_rev4
+    #ifdef KEYBOARD_planck_rev4
         planck_rev4_function();
     #endif
 #endif
 ```
 
-Note that the names are lowercase and match the folder/file names for the keyboard/subproject exactly.
\ No newline at end of file
+Note that the names are lowercase and match the folder/file names for the keyboard/revision exactly.
\ No newline at end of file