Renames keyboard folder to keyboards, adds couple of tmk's fixes (#432)

* fixes from tmk's repo

* rename keyboard to keyboards

keyboards/ergodox_ez/190hotfix.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+#a tool to fix broken keymaps as a result of pull request #190 
+#changing the declaration of matrix_scan_user() and matrix_init_user()
+#
+#This script will save a copy of the specified keymap as keymap.c.bak
+#and then create a new keymap.c with the definion corrected.
+#this script must be run from the ergodox_ez directory
+if [ $# -ne 1 ]; then
+    echo $0: usage: ./190hotfix keymap_name
+    exit 1
+fi
+
+echo Saving backup as ./keymaps/$1/keymap.c.bak ...
+mv ./keymaps/$1/keymap.c ./keymaps/$1/keymap.c.bak
+
+echo Modifying ./keymaps/$1/keymap.c ...
+cat ./keymaps/$1/keymap.c.bak | sed -r 's/^void \* matrix_/void matrix_/'>./keymaps/$1/keymap.c
+
+echo Complete!