Improved the way we display the executed installer command
minor #88 Improved the way we display the executed installer command (javiereguiluz)

This PR was squashed before being merged into the 1.0-dev branch (closes #88).

Discussion
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Improved the way we display the executed installer command

This PR tries to solve #80 for the most used case.  Around 80% of users use Linux or Mac and most of them will install the installer in `/usr/local/bin/`, so we can easily improve commands' output.

Commits
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576b71d Improved the way we display the executed installer command