Merge pull request #488 from SatishTalim/master

commit - blog post
New Book Sponsor Flipit #275
Merge pull request #276 from Qwinix/issue_275

New Book Sponsor Flipit #275
Merge pull request #490 from Qwinix/master

Added New Book Sponsor Flipit #489
Add new speaker Verónica López #278
Merge pull request #279 from Qwinix/issue_278

Add new speaker Verónica López #278
Add new speaker Verónica López #278
Merge pull request #281 from Qwinix/issue_278

Add new speaker Verónica López #278
Add new speaker Verónica López #278 tw
Merge pull request #283 from Qwinix/issue_278

Add new speaker Verónica López #278 tw
Merge pull request #492 from Qwinix/master

Added new speaker Verónica López #491
commit