Merge pull request #199 from Maledictus/master

Blogique: avoid duplicate tags.
KT: pager stubs.
KT: load the quark by URL.
KT: button for invoking the pager.
Util: added SettableIconProvider.
KT: window icons in pager.
MT: don't warn about unknown windows.
KT: unique pager.
KT: link to Xcomposite.
KT: enable compositing redirections.
KT: compositing window grabber.
KT: proper fit for max pager height.
KT: properly show thumbnails in pager.
KT: use Composite to render thumbnails.
KT: support desktop switching.
KT: support app switching in pager.
Merge branch 'master' of github.com:0xd34df00d/leechcraft
SB2: appear on all desktops in --desktop mode.
Core: handle META key in KeySequences, thanks @amd63.
Merge pull request #200 from Maledictus/master

Blogique: hot fix