Win2xcur

This release fixes several issues that prevents `win2xur` from working with ImageMagick 7.

**Full Changelog**: https://github.com/quantum5/win2xcur/compare/v0.1.1...v0.1.2

This release fixes a bug in `x2wincur` where Xcursor animations were treated as being 1000 times slower than they actually were.

**Full Changelog**: https://github.com/quantum5/win2xcur/compare/v0.1.0...v0.1.1

This release fixes many issues relating to parsing the Xcursor format, premultiplied alpha, shadows, and handles some malformed `*.ani` files.

This release adds the new command, `x2wincur`, which converts cursors from X11 format to Windows format.

Some `*.ani` files have non-standard order of sections and extra data. `win2xcur` is now compatible with these cursors as well.