Cinnamon 3.2 Early Preview

Cinnamon 3.2.x will highlight a new interesting feature: Vertical Panels. This is the most interesting feature as it will add capability to add vertical panel in your desktop. GNOME 3 has been using it for a while, but Cinnamon developer decided to implement this in 3.2 with some considerations.
There's a noticeable performance improvement on this release as it's getting less lag in my desktop compared to previous 3.0 releases. I'm very pleased with the results and looking forward for more performance improvements made by the upstream developers.
I decided to build an early Cinnamon packages and test it first on my desktop for early preview. Since my desktop machine is tracking Slackware Current and contain other third party packages such as those coming from SBo or MSB projects, there's no guarantee that it will build cleanly under clean Slackware 14.2 installation. For that reason, i will try to test this under clean virtual machine on top of clean Slackware 14.2 installation.

There's a new package added for this new Cinnamon: autoconf-archive. It is required to build some Cinnamon packages (i found it while building cinnamon-control-center) and it also triggers a change in gnome-common package to use --with-autoconf-archive configure parameter so that the resulting output do not overlap each other.
While i conduct more testing on a clean VM, i posted some screenshots for early Cinnamon 3.2.0 preview. Feedbacks, bug reports and suggestions can be sent via github issue tracker or via email.