Add note about 'phar extension' dependency#5963

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snoek09 wants to merge 2 commits intosymfony:2.3from

snoek09:add-phar-extension-note

Commits on Dec 5, 2015

add note about phar extension dependency
Henry Snoek
committed

Commits on Dec 15, 2015

reword the note
Henry Snoek
committed