skip apc checks in CLI
[#43] Proposed fix

- Ensures that we can use either native PHP code returned by the security
  checker, or JSON.
Merge branch 'hotfix/43'

Close #43
Merge pull request #44 from kbond/skip-apc-cli

Skip apc checks in CLI
add PHP 5.6 to .travis.yml
Merge pull request #46 from sasezaki/patch-1

add PHP 5.6 to .travis.yml
added OpCacheMemory check
added tests
changed label