fixed OneClassPerFileFixer with ::class
fix typo on README.md Psr0Fixer -> psr0
minor #382 fix typo on README.md Psr0Fixer -> psr0 (cordoval)

This PR was squashed before being merged into the 0.5.x-dev branch (closes #382).

Discussion
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fix typo on README.md Psr0Fixer -> psr0

|Q            |A  |
|---          |---|
|Bug Fix?     |n  |
|New Feature? |n  |
|BC Breaks?   |n  |
|Deprecations?|n  |
|Tests Pass?  |y  |
|Fixed Tickets|   |
|License      |MIT|
|Doc PR       |   |

Commits
-------

363594d fix typo on README.md Psr0Fixer -> psr0
minor #383 fixed OneClassPerFileFixer with ::class (sstok)

This PR was merged into the 0.5.x-dev branch.

Discussion
----------

fixed OneClassPerFileFixer with ::class

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #377
| License       | MIT

Commits
-------

08ce9ab fixed OneClassPerFileFixer with ::class