add stream_append, stream2string

todo: test for memory leaks
better error message
Maildir: for standard Maildirs, take message index from file names
Maildir: make index field required
Maildir: fix regex 'typo'

sigh, languages that are too complex
Maildir: implement Maildir mtime
sorted directory streams
sorted Maildir streams
fix doc
update docs
add possibly-failing mailbox_unixtime method
move getfile and putfile to Chj/
show errors
xputfile_utf8: print nested data structures
move CSS to a shared file
add CSS for dir.top and dir.reply
create
create Chj::FP::url_
remove unused dependency
de-duplicate stream_*_fold_right