Changed gentoo installation script filename

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Added reboot phase

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Fixed awk printing of swap config

The printing was not working properly. The forward slash was being interpretted
as a regex. This commit ensures the awk printing works and results in an LVM
path

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Added ability to download the latest stage

The original script allows you to specify a stage to download. For convenience,
this commit will take a standard gentoo mirror url and find the latest stage.
Stage download links contain the date, so this commit allows you to avoid having
to constantly update the config file with new urls each time a new stage comes
out.

This "latest stage" feature is implemented by specifying the
`stagestatus=latest` configuration option in the installation config file.

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Changed make.conf path from /etc/make.conf to /etc/portage/make.conf

Signed-off-by: Byron Sanchez <byron@hackbytes.com>