minor tweaks and branding
Use  instead of pgrep to get PID
Fix typos
Merge pull request #964 from jordansissel/fix-typos

Fix typos
Merge pull request #948 from kurtado/doc/output/elasticsearch_http

minor tweaks and branding
Merge pull request #962 from dampcake/LOGSTASH-1806

Use $! instead of pgrep to get PID