fix SQL script naming explanation
Case-insensitive matching of errors/warnings in admin diagnostics
Force lowercase before matching diagnostics logs

As per review feedback - PR #1117
mention header and footer
omit mention of data.sql
Merge pull request #1174 from mtbc/sql-names

fix SQL script naming explanation
Merge pull request #1179 from zeb/rebased/dev_4_4/admin-diagnostics-case-insensitive-develop

Rebased/dev 4 4/admin diagnostics case insensitive develop