BUGFIX: display slides when there is only 1

Hi John,

first of all: thanks for your plug-in, it has been very useful to us and the code you wrote is very readable, making it easy to read it through.
I'm contacting you as I noticed a bug in our app when only 1 slide is displayed : all slides are hidden.

I didn't have to dig too much in your plug-in sources to find (l.115 in uncompressed v1.3).

if( state.slidecount > 1 ){

I then replaced it:

if( state.slidecount >= 1 ){

And it's all fine.