Merge pull request #266 from Qwinix/master

Added Sau Sheong Chang to the speakers list
commit
Merge pull request #267 from SatishTalim/master

commit - minor
commit
Merge pull request #269 from SatishTalim/master

commit - blog post
commit
Merge pull request #270 from SatishTalim/master

commit - minor
commit
Merge pull request #272 from SatishTalim/master

commit - blog post
Volunteers Added
Merge pull request #109 from Qwinix/issue_107

Volunteers Added
Merge branch 'master' into gh-pages