* Add support for 8 buttons to mouse report
This includes support for 8 buttons in mousekeys. However, this does move the keys around due to the fact that the last mousekey keycode is already 0xFF, so any past that would not work with register_code and the like, breaking them for tap hold keys, encoders, and other features.
* Update mouse key docs
* Add changes based on feedback
* Fix VUSB report size comment
Because drashna red gud
* Fix typo in action.c
* Fix IS_MOUSE_BUTTON check
* Change start range for mousekeys so that the end is 0xFF properly
* condense mousekeys check
* Add standard ALGR defition, remove (re)definitions from language files
* Use ALGR(kc) consistently in ALTGR(kc) aliases
* Non-Nordic keymaps should not use NO_ALGR
* Add standard KC_ALGR definition
* Update docs with ALGR and KC_ALGR
* Update SS_ALGR and ALGR_T aliases
* Fix dead link to USB keycodes doc
Link was dead and the fresher version I could find on usb.org is still older than this one.
Thus, WaybackMachine seems the best option.
* Fix dead link to USB keycodes doc, with 2 options
Give the WaybackMachine link (fresher and for reference of the content of the original link) and the usb.org one (older)
* Generate api docs from source code
* Add a bunch of doxygen comments
* more doxygen comments
* Add the in-progress api docs
* script to generate docs from travis
* Add doc generation to the travis job
* make travis_docs.sh commit the work it does
* make sure the docs script exits cleanly
