Fix EZP-20982: UrlAlias matcher not working correctly
Fix EZP-20985: excluded_uri_prefixes throwing 503
Merge pull request #390 from ezsystems/ezp_20985

Fix EZP-20985: excluded_uri_prefixes throwing 503
Merge pull request #389 from ezsystems/ezp_20982

Fix EZP-20982: UrlAlias matcher not working correctly
Fix EZP-20877: Improve unit test code coverage of eZ\Publish\Core\SignalSlot
Fixed CS issue
Removed useless getIOService from SignalSlot repository (leftover of 8c020765f)
Removed getNameSchemaService() from Signal Slot Repository
Fixed XmlText defaultValue format in REST documentation
Sync phpdoc with interface
EZP-20978: validate required properties
EZP-20978: reload given ContentType
EZP-20978: rewrite condition to be more obvious
EZP-20978: remove temp. variable
EZP-20978: extract methods to make main method simpler

Fixed: createContent(): when field langauge is not set by setting struct property directly
EZP-20978: prevent argument mutation
EZP-20978: extract getting default object states into separate method to make main method simpler
EZP-20978: fixed field not being updated not being validated
EZP-20978: fixed translation value on untranslatable field being passed to storage
EZP-20978: refactored a bit for clarity