Track CLDR-26 updates to currency data.

source/data/curr/it.txt : The "Svizzero" for CHF is now lowercase.
source/data/curr/fr_CA.txt : US dollars are now "$ US".
source/data/curr/en_GB.txt : Removed GB specific override ("$") for USD.
    We now fall back to en_001 for USD, which is "US$".

Change-Id: I985897c67ed9ae831aa6b0eeb6d601a4adeeb2f9
2 files changed