Update HttpClientFactory.php

Update to manage HttpClient Options
Update module.config.php
Update HttpClientFactory.php
Update module.config.php
Update HttpClientFactory.php
Update README.md
Update README.md
Add contributing note
Fix 18
Fix AlphaMail support
Merge pull request #25 from bakura10/contributing

Add contributing note
Remove useless parameter
Merge pull request #26 from bakura10/fix-18

Fix 18
Merge pull request #27 from bakura10/fix-alpha-mail

Fix AlphaMail support
Update the changelog with RC2 bullets
Merge pull request #28 from juriansluiman/feature/update-rc2-message

Update the changelog with RC2 bullets
Update LICENSE for the year 2012-2013
Merge pull request #29 from juriansluiman/hotfix/update-license-year

Update LICENSE for the year 2012-2013
Remove .gitignore
Merge pull request #14 from juriansluiman/hotfix/remove-gitignore

Remove .gitignore from root