Add items to the list at the right position (fix #9)

Add the value 'original' for addItemTarget option in order to preserv…

…e the original select order.

No need to refresh the select for IE >= 8

version bump bsmSelect (1.4.0), sortable plugin (1.1.0), compatibilit…

…y plugin (1.0.0)

version bump (1.3.0)

version bump (1.2.2)

version bump (1.2.1)

refactoring, drop sortable plugin

fix typos

Allow listType option to be a callback (implementation by Andy Fowler)