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Update Release.txt.
Update files for v1.7.6.
Add advanced settings page.
CompositionObject: Copy only valid RLE data.

Use proper size type.
Fix warning C6230: Invalid HRESULT use as boolean.
MainFrm: Fix initial window size when using non-default mode.

Simplify the code.
MainFrm: Adjust minimal logo size.
Rasterizer: Construct pairs in place.

- emplace_back() is almost 3 times faster in this specific case.
- Various cosmetics.
CChildView: Properly destroy Cimage object.

We were leaking 52 bytes!
RTS: Support floating point values in drawing commands.

Fixes #4504