removed version info at develop
fixed typo in basic example, option 'val' to 'value'
fixed bug in onChange event: espace for option values that contains blank spaces
added keyboard and tabindex support
theme update, added .selected class style
disabled keyboard events on empty heapbox
Added early support for icons / data-icon-src attribute, code clean up
code clean up
added early support of option disabled attribute
added styles for disabled item
version 0.9.2 clean up