v.2.0.7b

• added count marks for all groups
• added font selection for listview
• prefer "blocklist_full.xml" parsing if it's presented

• improved signatures checking
• optimized listview redraw items
• optimized listview autosizing columns
• disable retrieving icon handle for network paths for notification dialog
• changed default listview colors
• optimized loading speed
• code cleanup
• fixed ui hanging in some cases
• fixed bugs