Update cdn.yml
DEVELOPER-1083 Requesting home page promo to support JBoss Fuse for xPaaS launch
DEVELOPER-1075 Updates to jboss.org/product/fuse page to support xPaaS launch
DEVELOPER-1076 Updates to jboss.org/product/amq page to support xPaaS launch
Merge pull request #637 from paulrobinson/DEVELOPER-1078

Developer-1078 xPaaS changes
Update cdn.yml
Perf with build threads set to 40
Trying to do products in threads
Doing stacks with the same threads as the rest
Removing commented code

Also removing unused variables.
Update cdn.yml
Update cdn.yml
Update cdn.yml
Merge pull request #636 from LightGuard/perf_questions

Perf questions MERGE READY
Update cdn.yml
Update cdn.yml
Revert "Perf questions MERGE READY"
Added steps to contribute a book
Merge pull request #641 from jboss-developer/revert-636-perf_questions

Revert "Perf questions MERGE READY"
Update cdn.yml