simplify syslog, limit to ERR and FATAL, make toggleable
fix rollup threshold, alerting checks display
Change alerting checks wording
Further changes to alerting checks text
Merge pull request #358 from ali-graham/21_configure_syslog

simplify syslog code, limit to ERR and FATAL, make toggleable
Merge pull request #359 from ali-graham/357_web_contact_rollup_fixes

fix rollup threshold, alerting checks display