Index: Riskeer.sln.DotSettings
===================================================================
diff -u -rab7a84d6e73888e4f0008d05580481698a6c32c4 -r7a891e5c07759837358a36690aee40137db72f53
--- Riskeer.sln.DotSettings	(.../Riskeer.sln.DotSettings)	(revision ab7a84d6e73888e4f0008d05580481698a6c32c4)
+++ Riskeer.sln.DotSettings	(.../Riskeer.sln.DotSettings)	(revision 7a891e5c07759837358a36690aee40137db72f53)
@@ -1,6 +1,6 @@
 <wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
 	<s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=AccessToDisposedClosure/@EntryIndexedValue">DO_NOT_SHOW</s:String>
-	<s:String x:Key="/Default/CodeInspection/CSharpLanguageProject/LanguageLevel/@EntryValue">CSharp70</s:String>
+	<s:String x:Key="/Default/CodeInspection/CSharpLanguageProject/LanguageLevel/@EntryValue">CSharp73</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeCleanup/Profiles/=DeltaresClean/@EntryIndexedValue">&lt;?xml version="1.0" encoding="utf-16"?&gt;&lt;Profile name="DeltaresClean"&gt;&lt;CSUseVar&gt;&lt;BehavourStyle&gt;CAN_CHANGE_TO_IMPLICIT&lt;/BehavourStyle&gt;&lt;LocalVariableStyle&gt;IMPLICIT_WHEN_INITIALIZER_HAS_TYPE&lt;/LocalVariableStyle&gt;&lt;ForeachVariableStyle&gt;ALWAYS_IMPLICIT&lt;/ForeachVariableStyle&gt;&lt;/CSUseVar&gt;&lt;CSMakeFieldReadonly&gt;True&lt;/CSMakeFieldReadonly&gt;&lt;CSUseAutoProperty&gt;True&lt;/CSUseAutoProperty&gt;&lt;CSArrangeThisQualifier&gt;True&lt;/CSArrangeThisQualifier&gt;&lt;CSOptimizeUsings&gt;&lt;OptimizeUsings&gt;True&lt;/OptimizeUsings&gt;&lt;/CSOptimizeUsings&gt;&lt;CSShortenReferences&gt;True&lt;/CSShortenReferences&gt;&lt;CSReformatCode&gt;True&lt;/CSReformatCode&gt;&lt;CSReorderTypeMembers&gt;True&lt;/CSReorderTypeMembers&gt;&lt;CSArrangeQualifiers&gt;True&lt;/CSArrangeQualifiers&gt;&lt;StyleCop.Documentation&gt;&lt;SA1600ElementsMustBeDocumented&gt;False&lt;/SA1600ElementsMustBeDocumented&gt;&lt;SA1604ElementDocumentationMustHaveSummary&gt;False&lt;/SA1604ElementDocumentationMustHaveSummary&gt;&lt;SA1609PropertyDocumentationMustHaveValueDocumented&gt;False&lt;/SA1609PropertyDocumentationMustHaveValueDocumented&gt;&lt;SA1611ElementParametersMustBeDocumented&gt;False&lt;/SA1611ElementParametersMustBeDocumented&gt;&lt;SA1615ElementReturnValueMustBeDocumented&gt;False&lt;/SA1615ElementReturnValueMustBeDocumented&gt;&lt;SA1617VoidReturnValueMustNotBeDocumented&gt;False&lt;/SA1617VoidReturnValueMustNotBeDocumented&gt;&lt;SA1618GenericTypeParametersMustBeDocumented&gt;False&lt;/SA1618GenericTypeParametersMustBeDocumented&gt;&lt;SA1626SingleLineCommentsMustNotUseDocumentationStyleSlashes&gt;False&lt;/SA1626SingleLineCommentsMustNotUseDocumentationStyleSlashes&gt;&lt;SA1628DocumentationTextMustBeginWithACapitalLetter&gt;False&lt;/SA1628DocumentationTextMustBeginWithACapitalLetter&gt;&lt;SA1629DocumentationTextMustEndWithAPeriod&gt;False&lt;/SA1629DocumentationTextMustEndWithAPeriod&gt;&lt;SA1633SA1641UpdateFileHeader&gt;Ignore&lt;/SA1633SA1641UpdateFileHeader&gt;&lt;SA1639FileHeaderMustHaveSummary&gt;False&lt;/SA1639FileHeaderMustHaveSummary&gt;&lt;SA1642ConstructorSummaryDocumentationMustBeginWithStandardText&gt;False&lt;/SA1642ConstructorSummaryDocumentationMustBeginWithStandardText&gt;&lt;SA1643DestructorSummaryDocumentationMustBeginWithStandardText&gt;False&lt;/SA1643DestructorSummaryDocumentationMustBeginWithStandardText&gt;&lt;SA1644DocumentationHeadersMustNotContainBlankLines&gt;False&lt;/SA1644DocumentationHeadersMustNotContainBlankLines&gt;&lt;/StyleCop.Documentation&gt;&lt;CSEnforceVarKeywordUsageSettings&gt;True&lt;/CSEnforceVarKeywordUsageSettings&gt;&lt;CSCodeStyleAttributes RemoveRedundantParentheses="True" /&gt;&lt;RemoveCodeRedundancies&gt;True&lt;/RemoveCodeRedundancies&gt;&lt;CSMakeAutoPropertyGetOnly&gt;True&lt;/CSMakeAutoPropertyGetOnly&gt;&lt;IDEA_SETTINGS&gt;&amp;lt;profile version="1.0"&amp;gt;&#xD;
   &amp;lt;option name="myName" value="DeltaresClean" /&amp;gt;&#xD;
   &amp;lt;inspection_tool class="ES6ShorthandObjectProperty" enabled="false" level="WARNING" enabled_by_default="false" /&amp;gt;&#xD;