QMK DFU bootloader generation (#2009)

* adds :bootloader target

* update planck and preonic revisions

* remove references to .h files for planck

* update preonic keymap

* only add keyboard.h files that exist

* add production target

* hook things up with the new lufa variables

* update rules for planck/preonic

* back backlight key turn of status led when pressed

* add manufacturer/product strings to bootloader

keyboards/preonic/rules.mk

@@ -55,7 +55,7 @@ OPT_DEFS += -DBOOTLOADER_SIZE=4096
 BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
 MOUSEKEY_ENABLE = no       # Mouse keys(+4700)
 EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
-CONSOLE_ENABLE = no         # Console for debug(+400)
+CONSOLE_ENABLE = yes         # Console for debug(+400)
 COMMAND_ENABLE = no        # Commands for debug and configuration
 NKRO_ENABLE = no            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
@@ -69,4 +69,6 @@ API_SYSEX_ENABLE = no
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
 
-LAYOUTS = ortho_5x12
+LAYOUTS = ortho_5x12
+
+DEFAULT_FOLDER = preonic/rev2