add macroexpand-1
Merge branch 'macroexpand-1'
disallow non-symbol objects at places where symbol is required
update docs
rewrite let-syntax in scheme
s/lib->senv/lib->env/g
separate (picrin test) and import some test macros from chibi scheme
remove useless newline
Merge pull request #173 from KeenS/test

separate (picrin test) and import some test macros from chibi scheme
allow multiple identifier aliasing
Revert "make contribs independant of the directory structure of picrin"

This reverts commit cdee9d91349ba53a23244d1f3ea5061c8c074975.
mv FindREGEXP.cmake to under 10.regexp
Merge branch 'master' into refactor-contrib
rewrite list<->vector converters in c
Merge branch 'master' into refactor-contrib
fix a bug of `test-values` and unlock the test cases that use `test-values`
rewrite vector-copy in c
rewrite floor/ and truncate/ in c
rewrite exact-integer-sqrt in c
rewrite boolean=? in c