Merge from master to 6.2.x for ER5

@pgier: I think this is good to go. If you append '&w=1" to the URL when you compare, you can ignore whitespace differences that were fixed to comply with formatting requirements.

These are mostly README file changes to remove references to AS 7. We also removed most EAP version numbers throughout the text and refer only to 'EAP 6.1 or greater' near the beginning of the files.

Let me know if you see any problems.