Correct JavaScript capitalization

[x] Try to keep the pull requests small; a pull request should try its very best to address only a single concern.
[ ] Make sure all tests pass and add additional tests for the code you submit.
[ ] Document your reasoning behind the changes. Explain why you wrote the code in the way you did; the code should explain what it does.
[ ] If there's an existing issue related to the pull request, reference to it by adding Fix #305, where 305 is the issue number.
[ ] If applicable (simple fix), please add a snapshot to save time for reviewers

Short description of what this resolves:

Changes Javascript to JavaScript