fixes formatting and parsing of numbers#396

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andekande wants to merge 4 commits intonikhilk:ccfrom

andekande:fix_numberformat

Commits on Sep 13, 2013

fixes formatting and parsing of numbers
andekande
committed

Commits on May 9, 2014

fixes unreliable rounding in various browsers
Jan Hesse
committed
semicolon missing
Jan Hesse
committed

Commits on Jun 27, 2014

format -0 as 0
Jan Hesse
committed