Conty now uses statically linked bash and busybox, so it no longer depends on system-wide bash, tar and gzip.
And other improvements in this commit:
* NVIDIA_HANDLER improved and enabled by default.
* Reworked the self-update feature, it uses fuse-overlayfs now instead of extracting the whole image.
* Added the CUSTOM_MNT, which allows to use Conty with already mounted custom moint points and directory structures.
* create-conty.sh now automatically sets the correct sizes in conty-start.sh
* Added more locales
