Merge pull request #1 from nicolas-raoul/master

Build instructions for Ubuntu
generic+ubuntu build instructions, make markup work
markup should work now
I am so bad at git
readme markup
PREFIX in makefile
ignore csv files
makefile compiles language plugins
remove unimplmented things
language plugin loading
printf -> fprintf stderr
changed some thing
iplus1_get_lang
english stemming working
link stemmer
sentence struct
sentence/parsing test code
cleanup code + iplus1_lang_load -> iplus1_lang_init