Update to v2.0.3-23

This commit contains files that haven't been modified by ny fix to
GOOGLEDOCS-124 - essentially a fast-forward.
Update to GoogleDocs AMP v2.0.3-23

Update the fix for GOOGLEDOCS-124 using version 2.0.3-23 of the AMP as
the base, in order to work around GOOGLEDOCS-214

This commit contains files that have been modified both by my fix and
the Alfresco team, essentially merging the differences.