Beta Release 0.2: Now Supporting Graphical Feedback!

With the new beta release, cart.el now supports graphical feedback!

This is implemented by spawning a transparent artist-mode buffer on emacs on top of the pdf and presenting ASCII representations of the user inputs here. This is more real-time than having to recompile the document.
All the features previously supported are also supported with the visual feedback. Calibration is particularly made easier.

Here's a quick demo (the curve is generated through tikz-coordinates, which draws smooth splines approximately through the selected points & tangents; that's why there's slight mismatches) :

Other than this, this release also includes bugfixes, making it a more stable package.

PS: I'm not particularly proud of the code; it can be considerably cleaned up. I'll appreciate any comments! :-)

Full Changelog: betareleasev0.1...v0.2