* changes to keymaps
* changes to userspace
* changes to userspace
* removed reference to fc660c keymap which no longer exists from userspace readme
* removed preonic keymap
* changed ortho keymaps and userspace
* changed prime_o keymap
* changed userspace
* optimized keymaps and userspace
* removed permissive hold as it doesn't seem to do anything
* defined TAPPING_TERM in userspace config.h
* Use standard KC_ALGR, remove language-specific redefinitions
* Use ALGR instead of ALTGR in BÉPO and Canadian multilingual keymaps
* Remove BE_LALT, BE_LGUI aliases