Change templates: CD -> installation medium

[Holger Wansing <hwansing@mailbox.org>]

Hi,

during the now active development cycle, I would like to make some changes on 
templates of the installer (affecting translations as well, of course):


Change "CD" into "installation medium" 
(such as in "Loading installer components from CD")

Rationale: those template go back to the times where CDs/DVDs were widely
used installation mediums.
However, these days we additionally have USB sticks as popular mediums, at 
least. So, I would like to change templates into some generic form, which 
work for all installtion mediums.



Any comments/objections?


Holger


-- 
Holger Wansing <hwansing@mailbox.org>
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