menu: make css
Merge pull request #331 from bem/issues/315@v2

menu: make CSS #315
popup: animation fix
fix mods pushing for menu
Merge pull request #362 from bem/issues/361@v2

Fix mods pushing for menu
button: focus on click, refocus on click to itself
Fix menu-item bemhtml
Merge pull request #367 from bem/issues/366@v2

Fix menu-item bemhtml
add spec for refocus
add spec for focus on click
Merge pull request #368 from bem/issues/365@v2

button: focus on click, refocus on click to itself (close #365)
WIP
wip
wip
WIP
wip
_checked
focus
properly change _inPopupPointerPress flag
WIP