Updated README

Removed unused components from README: ClassLoader, Finder and Process.

see https://github.com/fabpot/Goutte/pull/143
minor #166 Updated README (tony-co)

This PR was merged into the 2.0-dev branch.

Discussion
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Updated README

Removed unused components from README: ClassLoader, Finder and Process.

see https://github.com/fabpot/Goutte/pull/143

Commits
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32cca6b Updated README