[E-devel] [Patch][e][ibar] Add a configuration for locking icon movement

[Doyoun K. <doy...@sa...>]

Dear all.

I added a configuration value which (un)locks icon movement in ibar module. This will be usefull if the user doesn't want to move an icon in iBar on the Shelf. 
You can (un)set this value "iBar -> Settings -> Icon Movement field -> Lock Icon Move checkbox".
Please review this patch.

Thanks.
--
Doyoun Kang