Adds a configuration variable "titleLink" which allows to customize the
link on the title.
CSS venant de http://liens.effingo.be/inc/shaarli.css
J'ai mis mes couleurs.
Merge branch 'master' into sbgodin
typo
Merge branch 'master' into sbgodin
Merge remote-tracking branch 'sebsauvage/master' into sbgodin
Merge remote-tracking branch 'sebsauvage/master'
Merge remote-tracking branch 'sebsauvage/master'

Conflicts:
	inc/shaarli.css
Disables the update check and so prevents the unwanted connection
A real "Stay signed in": keep the connection

Instead of trusting the php session, it uses a cookie. The php session
sooner or later is distroyed if not used. It depends upon the server
settings. Using a cookie ensures that one really stays signed in.

Dev notes: I wanted to avoid merge conflicts, stay with the main
developper standards and keep the "index.php" in one file. That's why
the code may not be that nice. My own dev level my also explain.
Merge branch 'staySignedInWithCookie'
Fork explanation