Dot Clock New Tab

Make your New Tab a nicely designed dot clock! - 1.1.3: fix broken 1.1.3 version - 1.1.2: small performance improvement (computing digits faster) - 1.1.1: small performance improvement (less render) - 1.1.0: technical update (should use less resource) - 1.0.2: fix a memory leak - 1.0.1: technical update