v1.6.0.0

• added remember sticky state of tools windows after reopening workspace/pw
• added snapped subwindows stay by the main window if it moved
• added support for collapsing Tools Window
• modified execute form snapping for palette wndow like for other windows
• modified use Arial in Display form
• modified switch from colour to color in filenames and files
• modified switch to Arial as default font
• modified use lowercase pms file extension
• modified replaced pwlib.dll with vb6 gif loading
• modified refresh scenery reloads the complete scenery list not just the selected scenery
• modified sort scenery in 'Scenery' panel
• fixed make text in extended mode in preference form readable with arial font
• fixed preferences dialog disappears and cannot be opened after save error popup
• fixed error on startup due to uninitialized variables
• fixed skipping detailed warning for invalid soldat directory setting/registry key
• fixed position of texture window close button not all the way to the right
• fixed missing textures reset polygons on maximize
• fixed polyworks can't find Soldat directory
• fixed text selection on focus doesn't work
• fixed texture loading errors on startup
• fixed error on missing undo folder