Updated the installation and usage instructions
feature #43 Updated the installation and usage instructions (javiereguiluz)

This PR was squashed before being merged into the 1.0-dev branch (closes #43).

Discussion
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Updated the installation and usage instructions

Commits
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46ee57b Updated the installation and usage instructions
prepare 0.0.5 release
bumped version to 0.1.0-DEV
Added checking symfony requirements before showing success message
Removed phpdoc block, change status color, changed message