chore(supported environments): add JBoss EAP 6.2

related to CAM-1615
chore(user-guide): Fix two typos
fix(links): correct dead links on various pages

Related to CAM-1345
chore(docpad-plugin-links): upgrade to v2.8.2

Upgrade docpad-plugin-links to latest (v2.8.2) version and update
configuration accordingly.

This adds a number features such as better reporting, failOnError via
CI build and ZERO dead links to our docs project.

Happy docking!

Closes CAM-1345
chore(how-to/cockpit/plugin): Adjust how-to section due to changes

relate to CAM-1634
feat(supported env): add version information
fix(tomcat/jndi): fix xml snippets
fix(links): fix dead links
fix(jsf/forms): Adjust JSF Task Forms for camunda.taskForm

related to #CAM-1587