[lang] delete duplicated English UK files. The main English file IS the UK version
jni: fixed alt/shift keymap
droid: add LCTRL, RCTRL and CAPSLOCK
fixed borked build from f68634b7549d5089349867c2cbcd5cbf83a0950c
fixed broken build from 5ca72dbcd4b41513892e5fb602f00eb784d54a52