LDPartEditor 0.8.9-beta

Changes:
With the release of 0.8.9 you are able to...

• ...get a standard file header on any new *.dat file.
• ...benefit from a better performing colour change and BFC swap in the text editor.
• ...benefit from a little bit faster render engine (depends on the 3D settings).
• ...shutdown LDPE quicker. LDPE does not ask you for unsaved projects anymore.
• ...get lowercase folders names in the project structure.
• ...see "Ctrl+Click" hints on button tooltips (only for modifiable functions, e.g. "Round")

The following critical issues are fixed:

1. Risk of data loss: "Delete" in the text editor with no selected text threw an exception.
2. The pipette copied the RGBA values from an overwritten colour 16.
3. The subfile-compiler did not support "s" sub-parts on linux.
4. "Save As..." did not use the lowercase "s" prefix for subfile names.
5. "New Project" created a folder in the application directory.
6. Shaders did not compile on Intel HD Graphics.
7. The rubber band selection got cleared if the selection process was computationally intensive.
8. Opening a file in the 3D editor was not sychronised with the part tree on the left.