added rt/* functions

the perfect companion of https://github.com/eiro/vim-rt-client
l uses the -d flag
fix the unistra/annuaire email output

some mails were comming from the footer of the page, sed now stops when
detecting the start of this footer.
cleanup in error messages

as it seems there is no need to have so much behaviors:

* only warn and die remains
* both are returning the last error
Merge branch 'master' of github.com:eiro/uze