Update INSTALL.md
JSON_PRETTY_PRINT introduced only with PHP 5.4

Apparently JSON_PRETTY_PRINT option was only introduced with PHP 5.4
therefore we use FormatJson::encode() which does pretty print in PHP 5.3
Merge pull request #85 from SemanticMediaWiki/json

JSON_PRETTY_PRINT introduced only with PHP 5.4
Update RELEASE-NOTES.md
Legacy jobs to be executed in JobQueue

Reported by [1]

[1] https://semantic-mediawiki.org/wiki/Thread:Help_talk:Installation/Re:_Warning:_Class_'…'_not_found_in_…/reply_(4)
Merge pull request #86 from SemanticMediaWiki/jobs

Support for legacy job definitions
Update RELEASE-NOTES.md
Localisation updates from https://translatewiki.net.

Change-Id: Ieac63a6f371efcf5111a6e51ad81be08c4e0c097
DataTypeRegistry

Change-Id: I896d1e982fbbd05a85f4116ff49980b04f830b23
BrowseBySubject

Change-Id: I3bb2c0c7f182ad0e92a9eca9fe23e2ed083901e3
SpecialPageTestCase

Change-Id: I476122604d1aae3de948f45a1f9af34b35d9b774
ContentParserTest

Change-Id: I1243e8eadf54d4039fd43d93df6c9c0abfba5148
NewRevisionFromEditCompleteTest

Change-Id: Iae0ef2c48d2ef518ac2d26ee231a51b154116f11
Merge pull request #87 from SemanticMediaWiki/tests

Improve tests
MwNamespaceIntegrationTest

Change-Id: Ia41e3bf7c2498a83acc755a47dafb33fbb5155e8
NullDependencyContainerTest

Change-Id: Ic7699c08ecf6c1dead39869f114c53582fcbde28
CategoryPropertyAnnotatorTest

Change-Id: I92e0025a99e4e3e6c603fc04397a440b7e277f04
Merge pull request #88 from SemanticMediaWiki/tests

Improve tests
Improve SemanticDataDeserializer for incomplete subobject data
Merge pull request #90 from SemanticMediaWiki/serializer

Improve SemanticDataDeserializer for incomplete subobject data