'ViewContext' interface extracted, files render workflow refactored to use this interface.
'ViewContext' renamed to 'ViewContextInterface'.
typo fix.
Update FallbackMessageFormatter.php

Fix declarations for yii\i18n\FallbackMessageFormatter::format() and yii\i18n\FallbackMessageFormatter::formatMessage()
Merge pull request #1083 from rosko/master

Update FallbackMessageFormatter.php
refactored message formatter
added unit test to verify AR afterSave isNewRecord value

closes #1084
ensure parameter types in baselistview message

fixes #1072
Merge branch 'master' into messageformatter-refactoring

* master:
  ensure parameter types in baselistview message
  added unit test to verify AR afterSave isNewRecord value
refactored MessageFormatter
fixed fallback message format parameter order
support integer number type in fallback message formatter
Add missing @throws PHPDoc declaration.
Merge pull request #1085 from cebe/messageformatter-refactoring

Messageformatter refactoring
pgsql: added 'bool' type (alias of 'boolean')

Relates #1086 and #1087
Merge pull request #1088 from pmoust/patch-2

pgsql: added 'bool' type (alias of 'boolean')
add support for named arguments to messageformatter parse
doc fix
Merge pull request #1091 from cebe/messageformatter-refactoring

Messageformatter refactoring
added README for unit tests

as requested in issue #1084