fixes bug 918929 - can't sort columns in reports view, r=AdrianGaudebert
avoid EPEL timeouts, clarify adding pg_config to PATH
this is pulling a specific version, only check for present not latest
Merge pull request #1537 from rhelmer/install-es-once

this is pulling a specific version, only check for present not latest
Merge pull request #1536 from rhelmer/doc-fixes

avoid EPEL timeouts, clarify adding pg_config to PATH