cleanup
Merge pull request #74 from koba-e964/master

[bugfix] macroexpand (Issue #68)
Merge branch 'master' of github.com:wasabiz/picrin
use uint**_t for nan-boxing
pic_vtype should not evaluate the argument twice
Merge branch 'broken-op-not'
move pic_try/pic_catch macros to error.h
now you can 'throw' exceptions from catch clause
rewrite define-library expander with pic_try/catch
Merge branch 'throw-in-catch'
add emacs keyword highlight plugins
add pic_throw function
error function is no longer used
add notation about pic_try usage
drop support for raise-continuable for a moment
update readme
don't use pic->rescue stack in with-exception-handler
pic_raise is equivalent to pic_throw. remove it.
inline pic_error definition
cleanup