Merge pull request #1 from houqp/make-fix

move all target in Makefile.defs to Makefile
replaced static configuration of emulated display size to dynamic
Merge pull request #2 from koreader/hwhw-master

replaced static configuration of emulated display size to dynamic
update README according to latest changes in einkfb.c
Merge pull request #3 from houqp/master

update README according to latest changes in einkfb.c
Merge pull request #5 from houqp/houqp-master

add lua_gettext module