Incorporate changes from several pull requests
Merge pull request #53 from ckuehl/updates20140805

Incorporate changes from several pull requests
Fix section headers
Fix bullets
Fix bullets
Corrected typo
Merge pull request #56 from ostackbrian/typo001

Corrected typo
Update Interaction Methods
Merge pull request #59 from ckuehl/updates20140805-2

Update Interaction Methods
Merge branch 'NTP' of github.com:tryhoehne/docs-core-infra-user-guide into NTP
message
ntp changes