Bug 733733 - Crash due to write out of buffer in CamelMimeFilterToHTML
Do not add GTasks source when the GTasks backend is not built

It was causing an error "Unable to connect to 'Tasks': No backend
factory for hash key 'gtasks:VTODO'" when this source was selected
in UI, because the source was added unconditionally, while
the backend itself is built with libgdata 0.15.1+ only.
Updated Oriya translation
Bug 735200 - [IMAPx] Fails to handle QUOTA response with no quotas

The untagged QUOTA response includes a list containing quota usage and
limits for each quota resource for which a limit applies. Per RFC 2087
section 5.1, "The list contains zero or more triplets.".

Fix the parser to handle an empty list. Additionally, when the IMAP
server supports the quota extension but reports no quotas for a folder,
return G_IO_ERROR_NOT_SUPPORTED rather than G_IO_ERROR_NOT_FOUND, since
Evolution (and maybe other callers) special-cases the former error code.