vendor_slim: Update Nova Launcher to latest version

Update Nova Launcher to version 3.0. Also, add libgif.so to
prebuilt libs.

Change-Id: If38f01fa8fa0f54f2cc5410f9982d30a7b0e01d2
update and push to 4.4.3

Change-Id: Ibc4e0d4a5f1d91953427a46f54e97a97853b0e28
Merge "vendor_slim: Update Nova Launcher to latest version" into kk4.4
Merge branch 'kk4.4' of https://github.com/SlimRoms/vendor_slim into kk4.4
Merge pull request #7 from SlimSaber/kk4.4

update