Merge pull request #1031 from llinares/v1.0

Use shownby/hiddenby instead open/close
#1027 Util: Remove stopPropagation() from prevent().
Merge remote-tracking branch 'chico.ml/v1.0' into v1.0
#995 Use _toggle method on Popovers. Move ch.Closable to ch.Popover.closabe. Update ui files.
Remove last break line.
#1032 Closable: Move ch.Closable ability to ch.Popover as a private member.
#1032 Remove ch.Closable example from ch.Widget documentation.
Mobile: remove ch.shortcuts initialization from init.js
#1032 Lint ch.Popover
Merge pull request #1033 from pazguille/v1.0

Remove Closable ability. Add toggle functionality to popovers. Remove event.stopPropagation from utils.
#1032 Move private functions inside the closable scope.
#1032 Move private functions inside the closable scope.
Merge pull request #1034 from pazguille/v1.0

V1.0
GH-989 Popover: The show() method must receive options to configurate content() method.