[WFLY-2666] Fixing NPE
Merge pull request #5624 from asoldano/WFLY-2666

[WFLY-2666] Fixing NPE
Set MAX_FD_LIMIT correctly for mac os x
Upgraded joda-time:joda-time:2.3
Upgraded org.slf4j:slf4j-api:1.7.5
Upgraded org.jdom:jdom:1.1.3
Upgraded commons-io:commons-io:2.4
Added httpclient-cache to the org.apache.httpcomponents module
      org.apache.httpcomponents:httpclient-cache:${version.org.apache.httpcomponents.httpclient}
Added mime pull for handling large attachments with SAAJ to com.sun.xml.messaging.saaj module
      org.jvnet.mimepull:mimepull:1.9.4
      org.jvnet.staxex:stax-ex:1.7.5
Upgraded sun.saaj-impl to 1.3.23.aspan-1
Added build-files for module add-ons
Added module com.mysql
  com.mysql:mysql-connector-java:5.1.27
Upgraded commons-codec:commons-codec:1.8