Sync docs from 2.1.x to gh-pages

2.1.x/multi/multi__spring_cloud_contract_stub_runner.html

@@ -525,6 +525,7 @@ its methods as presented below:</p><pre class="programlisting"><xslthl:annotatio
 	<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">void</span> setupProps() {
 		System.clearProperty(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"stubrunner.repository.root"</span>)
 		System.clearProperty(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"stubrunner.classifier"</span>)
+		WireMockHttpServerStubAccessor.clear()
 	}
 
 	def <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'should mark all ports as random'</span>() {

2.1.x/single/spring-cloud-contract.html

@@ -3101,6 +3101,7 @@ its methods as presented below:</p><pre class="programlisting"><xslthl:annotatio
 	<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">void</span> setupProps() {
 		System.clearProperty(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"stubrunner.repository.root"</span>)
 		System.clearProperty(<span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">"stubrunner.classifier"</span>)
+		WireMockHttpServerStubAccessor.clear()
 	}
 
 	def <span xmlns:d="http://docbook.org/ns/docbook" class="hl-string">'should mark all ports as random'</span>() {

2.1.x/spring-cloud-contract.xml

@@ -5113,6 +5113,7 @@ class StubRunnerConfigurationSpec extends Specification {
 	void setupProps() {
 		System.clearProperty("stubrunner.repository.root")
 		System.clearProperty("stubrunner.classifier")
+		WireMockHttpServerStubAccessor.clear()
 	}
 
 	def 'should mark all ports as random'() {