Issue/PLUG-1218 async filters and servlets

PLUG-1218 Make plugins core tests pass on Windows again

• Also upgrade to mvn 3.3.9 and base pom 5.0.13

• Also upgrade to log4j 1.2.17 and jsr305 3.0.2_1

PLUG-1218 Add support for async servlets and filters

• Use javax.servlet.DispatcherType instead of our own FilterDispatcherCondition enum

• Implement isAsyncSupported for request wrapper

• Simplify ServletFilterModuleContainerFilter to no longer require a dispatcher init-param. Use the request.dispatcherType instead

• Add support for async-supported elements in filters and servlets

• Update default dispatcher filter chains for a filter to be request and async, to reduce upgrade effort

PLUG-1218 Minor test cleanup

• Fix TestExportsBuilder to expect new log4j version

• Remove redundant override in TestLegacyFrameworkRestart of testMultiplePlugins

• Restore legacy no-args constructor to DummyModuleDescriptor to resolve enormous test logspam issues