Revert "namespace declaration has not to be in UpperCamelCase"

This reverts commit 521011e.

Author: fa-grosch

ruleset.xml

@@ -8,6 +8,7 @@
     <rule ref="Generic.NamingConventions.UpperCaseConstantName"/>
     <rule ref="./custom-standards/Flyeralarm/Sniffs/File/ExceptionMessageSniff.php"/>
     <rule ref="./custom-standards/Flyeralarm/Sniffs/File/ForbiddenKeywordsSniff.php"/>
+    <rule ref="./custom-standards/Flyeralarm/Sniffs/File/NamespacesSniff.php"/>
     <rule ref="./custom-standards/Flyeralarm/Sniffs/File/NoClassKindSuffixSniff.php"/>
     <rule ref="./custom-standards/Flyeralarm/Sniffs/Docblock/ReturnTypeSniff.php"/>
     <rule ref="./custom-standards/Flyeralarm/Sniffs/Docblock/ExpectedExceptionMessageSniff.php"/>