Update tidy-maven-plugin: 1.1.0 -> 1.2.0

This fixes a bug where the schemaLocation was reset to HTTP from HTTPS.

Author: ctrueden

pom.xml

@@ -296,7 +296,7 @@
 		<exec-maven-plugin.version>3.0.0</exec-maven-plugin.version>
 		<groovy-maven-plugin.version>1.5</groovy-maven-plugin.version>
 		<license-maven-plugin.version>2.0.0</license-maven-plugin.version>
-		<tidy-maven-plugin.version>1.1.0</tidy-maven-plugin.version>
+		<tidy-maven-plugin.version>1.2.0</tidy-maven-plugin.version>
 		<versions-maven-plugin.version>2.8.1</versions-maven-plugin.version>
 
 		<!-- Other Maven plugins -->