The test server url for Carvajal T&S was out of date and has been
updated with the correct one. Carvajal has also split into 2
different companies, with new customers using the new company (CSC)
by default but the older company (CTS) still being available for
existing customers. See task 2508208. So the documentation was
updated to include both of them.
CTS (Carvajal T&S) was being used to refer to Carvajal in general,
so to avoid confusion those mentions have been changed to just
"Carvajal" since it can refer to either CTS or CSC.
X-original-commit: 396df2abdd
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