Changed download link to 1.05

#279
Updated download link to 1.05 version

#279
[#285] Updates the info about how updates happen
Merge pull request #286 from IATI/285-update-non-embedded-codelist-upgrade-process

[#285] Updates the info about how updates happen
Merge branch 'version-1.05' into version-2.01

Conflicts:
	en/activity-standard/example-xml.rst
	en/organisation-standard/example-xml.rst