[epel] corrected epel dl url for centos 5/6, for sensu 0.11.x and 0.12.x
Merge pull request #91 from portertech/epel

corrected epel dl url for centos 5/6, for sensu 0.11.x and 0.12.x
[mailx] use `mailx` in the mail handler example, as bsd mail is an alias, accepts stdin body
Merge pull request #92 from portertech/mailx

use `mailx` in the mail handler example, as bsd `mail` is an alias
[typos] caught a few typos on 0.11/12 handlers, eg. setttings
Merge pull request #93 from portertech/typos

caught a few typos on 0.11/12 handlers, eg. setttings