[cd.13] Restructuring and cleaning up the Deploying JBoss EAP on Amazon EC2 guide

TOC-level changes

• Making chapter titles consistent
• Gerund or noun?
• Making task titles consistent
• Adding missing content
• Restructuring the document to ensure the logical flow of information
• Ensuring only the relevant heading levels are appearing in the TOC

Content-level changes
Following a consistent style in the usage of:

• Abbreviated terms
• References
• Notes
  Correcting grammatical errors and typos