Upgrade to OpenPDF 1.2 and Apache HttpAsyncClient 4.1.4

spring-web/spring-web.gradle

@@ -41,7 +41,7 @@ dependencies {
 	optional("org.apache.httpcomponents:httpclient:4.5.6") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
-	optional("org.apache.httpcomponents:httpasyncclient:4.1.3") {
+	optional("org.apache.httpcomponents:httpasyncclient:4.1.4") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
 	optional("commons-fileupload:commons-fileupload:1.3.3")

spring-webmvc/spring-webmvc.gradle

@@ -23,7 +23,7 @@ dependencies {
 	optional("javax.xml.bind:jaxb-api:2.3.0")
 	optional('org.webjars:webjars-locator-core:0.35')
 	optional("com.rometools:rome:1.11.0")
-	optional("com.github.librepdf:openpdf:1.1.0")
+	optional("com.github.librepdf:openpdf:1.2.0")
 	optional("org.apache.poi:poi-ooxml:3.17")
 	optional("org.freemarker:freemarker:${freemarkerVersion}")
 	optional("com.fasterxml.jackson.core:jackson-databind:${jackson2Version}")