add 1) icons next to the folder name (custom icons are supported)     2) tooltips for the folder, which eventually will show folder size.
add 1) icons next to the folder name (custom icons are supported)
    2) tooltips for the folder, which eventually will show folder size.

svn path=/trunk/KDE/kdepim/kontact/plugins/; revision=880612

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi