Merge pull request #506 from SatishTalim/master

commit - minor
Add Anubhav Sinha as speaker #303
Merge pull request #308 from Qwinix/issue_303

Add Anubhav Sinha as speaker #303
Add Gabriel Aszalos as a Speaker #304
Merge pull request #310 from Qwinix/issue_304

Add Gabriel Aszalos as a Speaker #304
Add Keiji Yoshida as a Speaker #305
Merge pull request #312 from Qwinix/issue_305

Add Keiji Yoshida as a Speaker #305
Add Guillaume J. Charmes as a Speaker #306
Merge pull request #314 from Qwinix/issue_306

Add Guillaume J. Charmes as a Speaker #306
updated image
Merge pull request #316 from Qwinix/issue_305

updated image
Add Lakshan Perera as a Speaker #307
Merge pull request #318 from Qwinix/issue_307

Add Lakshan Perera as a Speaker #307
udpated target blank
Merge pull request #320 from Qwinix/issue_307

udpated target blank
updated content
Merge pull request #322 from Qwinix/issue_305

updated content
updated the twitter link
Merge pull request #324 from Qwinix/issue_305

updated the twitter link
Merge pull request #515 from Qwinix/master

Added 5 new speakers + updated Keiji Yoshida's profile + twitter link