Fixed tabs width calculations to have subpixel accuracy
Fixed tabs width calculations to have subpixel accuracy

AndreyTepaykin/Platform,AndreyTepaykin/Platform,AndreyTepaykin/Platform,EGreg/Platform,EGreg/Platform,Qbix/Platform,Qbix/Platform,Qbix/Platform,Qbix/Platform,EGreg/Platform,AndreyTepaykin/Platform,EGreg/Platform