Check that PHP 5.4 or higher is installed [#24]
bug #30 Check that PHP 5.4 or higher is installed [#24] (jzawadzki)

This PR was squashed before being merged into the 1.0-dev branch (closes #30).

Discussion
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Check that PHP 5.4 or higher is installed [#24]

Added checking if PHP version is>=5.4.0 as per #24
JZ

Commits
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56135f6 Check that PHP 5.4 or higher is installed [#24]