Merge pull request #19 from madmanmax/master

Fix for numeric values being lost when prepending options.
ignore phpstorm project files
added placeholder shim
Merge pull request #20 from madmanmax/master

Using the HTML attribute 'placeholder' instead of the overhead code to simulate the functionality.
Make sure you have the jquery-html5-placeholder-shim.js to enable this functionality in IE
[fix] PHP complains about declaration differences

Declaration of WinkForm\Input\AddressInput::setSelected() should be compatible with that of WinkForm\Input\Input::setSelected()