First pass at version 0.5.0
toggle cover element visibility on show/close of dialogs
keep focus inside dialog window
reset focus to last focused element
clean dialog common API
add keyboard shortcuts, ENTER, SPACE and ESC
remove SPACE keyboard shortcut and moved keyup event after dialog is visible
don't allow new dialogs when one is already opened, show() returns boolean whether it opened or not
remove webkit input appearance, allow local server to be accessed on devices
minor cleanup
add main key to bower.json
Merge remote-tracking branch 'origin/0.5'