Fix #69 - remove strtolower() call on file path

[junlarsen]

Closes #68 Closes #69

This PR fixes the issue presented in #68 with non-laravel environments This PR should solve the issue presented in #69

What kind of change does this PR introduce? (check at least one)

• [x] Bugfix
• [ ] Feature
• [ ] Code style update
• [x] Refactor
• [ ] Build-related changes
• [ ] Other, please describe:

Does this PR introduce a breaking change? (check one)

• [ ] Yes
• [x] No

If yes, please describe the impact and migration path for existing applications:

The PR fulfills these requirements:

• [x] It's submitted to the development branch, not the master branch
• [x] When resolving a specific issue, it's referenced in the PR's title (e.g. fix #xxx[,#xxx], where "xxx" is the issue number)
• [x] All PHPUnit tests are passing
• [x] New/updated tests are included (if applicable)

Other information: Single unit test was updated because I changed the summoner name of that account