This reverts commit adfd5b92eb.

dc0e46e Rename LUFA to LUFA-git
3bfa7fa Remove LUFA-120730
215b764 Merge commit 'afa0f22a9299686fd88f58ce09c5b521ac917e8f' as 'protocol/lufa/LUFA'
afa0f22 Squashed 'protocol/lufa/LUFA/' content from commit def7fca
c0c42fa Remove submodule of LUFA
30f897d Merge commit '87ced33feb74e79c3281dda36eb6d6d153399b41' as 'protocol/usb_hid/USB_Host_Shield_2.0'
87ced33 Squashed 'protocol/usb_hid/USB_Host_Shield_2.0/' content from commit aab4a69
14f6d49 Remove submodule of USB_Host_Shield_2.0

git-subtree-dir: tmk_core
git-subtree-split: dc0e46eaa4

caca2c0 Add mouse support to ADB
5b0835a Merge commit '1fe4406f374291ab2e86e95a97341fd9c475fcb8'
f2f7556 Remove unneeded tap delays #201
8124195 Fix URL of HID Usage Tables pdf
0bb4679 Fix typo of doc/keycode.txt
b24fa1a Fix handling of consumer usage #199
6ae1a3d Improve anti-ghosting behavior for fast typing
a4c9763 Fix dfu-programmer parameters
b62b3f2 Move ring_buffer.h file
6ec424f Fix debug print
502fb0c Fix ibm4704 protocol with using interrupt

git-subtree-dir: tmk_core
git-subtree-split: caca2c0155

Adding the makefile options ADB_MOUSE_ENABLE and ADB_MOUSE_ACCMAX.
Might have gone overboard with comments, and tried but failed at not
adding more than necessary outside the converter/adb_usb/ folder.

b9e0ea0 Merge commit '7fa9d8bdea3773d1195b04d98fcf27cf48ddd81d' as 'tool/mbed/mbed-sdk'
7fa9d8b Squashed 'tool/mbed/mbed-sdk/' content from commit 7c21ce5

git-subtree-dir: tmk_core
git-subtree-split: b9e0ea08cb

Keypresses would be forgotten if they began while ghosting, even if they
were still pressed after ghosting ended.

https://github.com/dastels/tmk_keyboard/tree/master/converter/sun3_usb

7967731 Update README

git-subtree-dir: tmk_core
git-subtree-split: 7967731b8b

git-subtree-dir: tmk_core
git-subtree-split: 05caaccec9