Merge pull request #47 from romainneutron/fix-46

Fix #46 : Add check on PHP curl extension
Merge pull request #48 from romainneutron/fix-readme

Pimp README
Give love to index creation
Update index tools
Update travis build to integrate new tools
Remove XML output
Remove boost
Update parameters
Add score in response
Optimize ES queries
Fix unit tests
Address code review
Report PR #49
Fix travis build