menu: double shift on each keydown in IE (close #453)
Merge pull request #454 from bem/issues/453@v2

menu: double shift on each keydown in IE (close #453)
button: wrong behaviour on _focused mod (close #455)
Merge pull request #456 from bem/issues/455@v2

button: wrong behaviour on _focused mod in IE (close #455)
attach: Fix BH. Closes #435
Merge pull request #436 from bem/issues/435@v2

attach: Fix BH. Closes #435
input: Make identical bh-template as bemhtml