Use the logger everywhere

Add a logger class

Fix a parenthesis ambiguity

xml-escape the tail in an XmlNode

:3

Channel names are case insensitive

But some servers (epiknet for example) send channel names with an uppercase

Print some stuff when ./test is running

Re-add support for /me messages from IRC

It was recently removed because it was handled in the old "convert irc
colors" code. It now is in the right place.

Add some documentation

Implement IRC format to xhtml-im conversion

The generated XML is very verbose because each IRC formatting tag makes us
close a <span/> element and reopen it with the new style applied.  However,
this works quite well and is easy to implement.

fsanitize=address requires libasan, that’s a useless dependency.

Also we cannot use both this feature and valgrind at the same time.
So, I’ll just specify this flag myself when I need it, this doesn’t
need to be there by default

Remove incomplete implementation of remove_irc_colors

Set the parent of a node passed to add_child, and return it for conveniance

TIL override and final

Send XMPP multi-line messages as multiple IRC messages

Merge branch 'epolletc'

Let the user choose the poller to use through cmake POLLER option

Use ccmake, or cmake -i, or cmake -DPOLLER=EPOLL, for example

Use epoll

Send the motd as one single big message

We append each line to a string, and when the MOTD is
complete, we send that string at once.

Add a test for xml escape/unescape