Fix: remove prepended opcache
Enhancement: use library to parse (and fix) directives
Enhancement: add a few more assertions
Update: test setup
Enhancement: utilize new parser to get directives
Update: reverse logic

 * ensure the config object prefixes the directives
 * allows us to remove "logic" from the template
 * updated tests to reflect this
Fix: cs (rubocop)
Merge pull request #303 from till/bugfix/opcache-memory-consumption

Bugfix/opcache memory consumption