autocomplete : search simplified

attribut score added
score used to choose objects in the dictionnary
autocomplete: score added
autocomplete: natural logarithm used for score
autocomplete: correction for pt_objects
autocoplete: corrections

use of score to sort in find_complete
use of quality to sort in search n-gram
autocomplete: correction in api

attribut score added.

quality computed based on difference
between number of words in the query
and object name.

Treatment add for search using n-gram
autocomplete: tests modified
type: score added in ptobject
autocomplete: minor correction
autocomplete: test added
autocomplete: test modified
autocomplete: tests of web service added
Autocomplete: test python added
jormungandr: flask-cache added
autocomplete: corrections for comments
autocomplete: correction on sort
autocomplete: sort_and_truncate placed in submodule
Merge pull request #614 from kadhikari/places_fix_score_and_quality

Places fix score and quality with autocomplete integration test