Show snak type in summary for novalue and somevalue snaks

Change-Id: If5ebf96a10d8a847360501be431c9227810f7cce
extend ValueFormatterBase for MwIsoTimeFormatter

- allows the formatter to be used in a consistent manner as other formatters

Change-Id: I52541c24044290451255441b991ef347f3e66d96
Merge "extend ValueFormatterBase for MwIsoTimeFormatter"
Introduced 'qualifiers-order' parameter in ClaimSerializer

(bug 52391) Since, in the serialized JSON structure, the qualifiers are encapsulated
in an object indexed by property id, the 'qualifiers-order' parameter specifies the
order of those property ids.

Change-Id: I6f8399b621dddb6c84082db5fd35286a2ecd438c
Fix call to non-existing method in error case.

Change-Id: Id85d3182a8aaba53a3c863c12adefe0ec537f387
Fix change op exception messages

Change-Id: I5a870c9207fb9f9d54811e7f8b469bb76bba68e2
Localisation updates from http://translatewiki.net.

Change-Id: Iedd01e58022683de77d7bf2dab9862a8395007b2