Fix - trailing spaces after class or alias name
merged branch kibao/fix-used_use-trailing-whitespaces (PR #179)

This PR was merged into the master branch.

Discussion
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Fix - trailing whitespaces after class or alias name in an use statement

This change fixes following bugs:
- doesn't match an use statement when there're trailing whitespaces after class name
- matches an alias name with trailing whitespaces (when there're whitespaces after alias name) and deletes an alias with use operator even if alias is used

Commits
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39c3340 Fix - trailing spaces after class or alias name