Signed-off-by: Alejandro Mery <amery@geeks.cl>

Signed-off-by: Alejandro Mery <amery@geeks.cl>

Since linux kernel version >= 3.10 bc is needed to build it, which is a
side-effect of removing the dependency on perl.

and sightly refactor the remove_package() function

instead of $HOME/bin, because on some systems `sudo` alters $PATH for
security reasons

Signed-off-by: Alejandro Mery <amery@geeks.cl>

so we can actually `sudo sde ....` later

Signed-off-by: Alejandro Mery <amery@geeks.cl>

Note:

New versions of `file` return "XZ compressed data" instead of
"xz compressed data" like former versions did, which breaks xz
file type detection in 'sde-download'.

This reverts commit 26e9d3bd7e.

This reverts commit 6fa6b28992.

Note:

This is a first approach which leaves some space for improvements of course.