Save animation timeout IDs, clear them on reset

Should close #22.
Merge pull request #31 from jorygraham/master

Save animation timeout IDs, clear them on reset
use feature detection for browsers, make _browser.supported public
Respect fontFamily and fontStyle if type=rectangle
Merge branch 'pr/32' into v0.4.0
Merge branch 'pr/33' into v0.4.0
don't check hostname if we use data uri
reset wasn't falsifying _running
Merge branch 'pr/36' into v0.4.0
Merge branch 'pr/37' into v0.4.0
Firts verison with fallback (before cleanup)
0.4.0 with favico.jit.su fallback