unify includes of stdio and assert
Merge pull request #40 from stibear/srfi1

implement standard library: (srfi 1)
Merge branch 'master' of github.com:wasabiz/picrin
add Wataru to AUTHORS
add partial apply funciton
update xhash
rename symbols before macro lookup
remove unused constant
inline-expand a small function
add new_senv
cosmetic fixes
replace pic_syntax_new with pic_syntax_new_macro
add identifier_eq_p
syntax_new is a private API
stx->sym property is no longer used
rename a property of pic_syntax s/macro/proc/g
s/syntax/macro/g
use symbol_rename function in macro transformers
cleanup
defmacro takes a symbol for the name