[c64] CBM prg Studio 2.5.1

New features in v2.5.1:

• Some of the IDE's colours can be changed (background, tab strip, selected and non-selected windows).
• Menu to control open windows.
• Warnings if invalid BASIC jump (goto, gosub etc.) destinations are detected.
• ZPOpt directive added

Bugs fixed:

• Added 'missing' colours to VIC 20's screen designer.
• Default project location not being saved if the target machine was not changed.
• Assembler not assembling mixed case text directive strings properly.
• Dark and light gray colours were switched.
• Opening a project after a project had already been opened would use 'my documents' rather than the project directory.
• Incbin failed when used screen designer files.
• No colours were visible when starting the screen designer without loading a previous file.
• CTRL+Z not scrolling to changed text.
• * not recognised for current address.
• local labels not recognised in certain circumstances.
• Generation/import of prgs > 65k for C128 programs would fail.
• missing BASIC 7 'RLUM' keyword.