Fixed a typo in the doc about github auth
Fix typo in doc
add lib-icu and hhvm
Merge pull request #2620 from robocoder/patch-1

add hhvm and icu
Merge pull request #2621 from asm89/patch-1

Fix typo in doc
Merge pull request #2618 from stof/patch-5

Fixed a typo in the doc about github auth