[DDC-2655] Don't let getOneOrNullResult throw NoResultException
Merge pull request #780 from terite/DDC-2655

[DDC-2655] Don't let getOneOrNullResult throw NoResultException
Removed "minimum-stability" : "dev" from composer.json
Merge pull request #817 from mfdj/patch-1

Removed "minimum-stability" : "dev" from composer.json
Fixes a Fatal Error when using a subexpression in parenthesis

When some dql contains a subselect with expression in parenthesis, the
expression of the $simpleSelectExpression parameter given to
walkSimpleSelectExpression is an instance of AST\ParenthesisExpression.
Before this commit, this case defaulted to
$this->walkEntityIdentificationVariable($expr) where $expr is supposed
to be a string. A fatal error was then yielded.
Merge pull request #819 from vbourdeix/master

Fixes a Fatal Error when using a subexpression in parenthesis
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